core: crossRegionReferences generates too large buildspec in FileAsset

### Describe the bug

Cross region references rely on using Lambda functions, which are deployed with the stack.

I am deploying to 17 regions with a mix of importing and exporting, so there will be 17 export writer functions and 17 readers. Per the 8 accounts I want to deploy to.

All `cdk-asset` deploys of the same Lambda is being done in a single FileAssetXx action. This fails because its build spec becomes too large.

The problem is somewhat lessened because -- I found -- `cdk-asset` will only be invoked once per environment (account:region) even if multiple stacks use it in that environment. This behavior is not obvious because a stack's ID is part of the command.

But it is still possible to exceed the limit even when deploying only to 3 accounts, if deploying to all 29 regions and having IDs that are not super short.

### Expected Behavior

Cross region references in a pipeline are not limited by number of regions and accounts.

### Current Behavior

```
InfrastructurePipeline/InfrastructurePipeline/Assets/FileAsset14 (InfrastructurePipelineAssetsFileAsset14268FCA88)
Failed to call UpdateProject, reason: Max buildspec length is 25600
(Service: AWSCodeBuild; Status Code: 400; Error Code: InvalidInputException; Request ID: ; Proxy: null)
```

### Reproduction Steps

```typescript
import { App, Stack, Stage } from 'aws-cdk-lib';
import {
Effect,
PolicyDocument,
PolicyStatement,
Role,
ServicePrincipal,
} from 'aws-cdk-lib/aws-iam';
import { Bucket } from 'aws-cdk-lib/aws-s3';
import { CodePipeline, CodePipelineSource, ShellStep } from 'aws-cdk-lib/pipelines';

const app = new App();

const regions = [
'af-south-1', 'ap-east-1', 'ap-northeast-1', 'ap-northeast-2', 'ap-northeast-3', 'ap-south-1', 'ap-south-2',
'ap-southeast-1', 'ap-southeast-2', 'ap-southeast-3', 'ap-southeast-4', 'ca-central-1', 'ca-west-1',
'eu-central-1', 'eu-central-2', 'eu-north-1', 'eu-south-1', 'eu-south-2', 'eu-west-1', 'eu-west-2', 'eu-west-3',
'il-central-1', 'me-central-1', 'me-south-1', 'sa-east-1', 'us-east-1', 'us-east-2', 'us-west-1', 'us-west-2',
];

const accounts = ['123456789001', '123456789002', '123456789003', '123456789004'];

class MyPipeline extends Stack {
constructor() {
super(app, 'InfrastructurePipelineStack', {
env: { account: '123456789099', region: 'eu-west-1' },
});

const pipeline = new CodePipeline(this, 'InfrastructurePipeline', {
crossAccountKeys: true,
synth: new ShellStep('Synth', {
commands: [],
input: CodePipelineSource.connection('o/r', 'b', { connectionArn: '' }),
}),
});

for (const account of accounts) {
const stage = new Stage(this, `Stage-${account}`);

const exportingStack = new Stack(stage, `ExportingStack-${account}`, {
env: { account: account, region: 'eu-west-1' },
crossRegionReferences: true,
});
const exportedBucket = new Bucket(exportingStack, 'ExportedBucket');

for (const region of regions) {
const stack = new Stack(stage, `Stack-${account}-${region}`, {
env: { account: account, region: region },
crossRegionReferences: true,
});
new Role(stack, 'ImportingRole', {
assumedBy: new ServicePrincipal('service.amazonaws.com'),
inlinePolicies: {
actions: new PolicyDocument({
statements: [
new PolicyStatement({
effect: Effect.ALLOW,
actions: ['s3:*'],
resources: [exportedBucket.bucketArn],
}),
],
}),
},
});
}

pipeline.addStage(stage);
}
}
}

new MyPipeline();
```

The resulting BuildSpec is about 32k. Even if only deploying to 3 accounts (a not uncommon pattern with ['test'], 'staging', 'production' and 'pipeline') it would be possible to exceed 25600 if identifiers were 20 characters longer than this example.

```javascript
{
"version": "0.2",
"phases": {
"install": {
"commands": [
"npm install -g cdk-assets@2"
]
},
"build": {
"commands": [
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001afsouth110207D57.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-af-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001apeast15583CC4C.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ap-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001apnortheast1327014FC.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ap-northeast-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001apnortheast2DA4F6AF5.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ap-northeast-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001apnortheast3F0C917D9.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ap-northeast-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001apsouth18AF4448F.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ap-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001apsouth2B3F8D462.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ap-south-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001apsoutheast1228DED0C.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ap-southeast-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001apsoutheast296BC5077.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ap-southeast-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001apsoutheast3B108EDC8.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ap-southeast-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001apsoutheast44FB59181.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ap-southeast-4"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001cacentral1EB787D18.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ca-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001cawest196843836.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-ca-west-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001eucentral12F0D5FB5.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-eu-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001eucentral23358FDCF.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-eu-central-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001eunorth10BE03AF1.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-eu-north-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001eusouth1A6A4B877.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-eu-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001eusouth2C3D35869.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-eu-south-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001euwest2A8E8BCAA.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-eu-west-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001euwest3B846D522.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-eu-west-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001ilcentral1B4F5BAA9.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-il-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001mecentral12995A8D5.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-me-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001mesouth1D1DDBAED.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-me-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001saeast1826DC9A5.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-sa-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001useast1B40BBABB.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-us-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001useast2A7D83BF3.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-us-east-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001uswest1D0A050EA.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-us-west-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789001/InfrastructurePipelineStackStage123456789001Stack123456789001uswest2900A58F0.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789001-us-west-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002afsouth1A9A890AD.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-af-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002apeast1E2396BA9.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ap-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002apnortheast1358FB29B.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ap-northeast-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002apnortheast2E45F7D39.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ap-northeast-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002apnortheast35E5D7B08.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ap-northeast-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002apsouth184F84FC5.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ap-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002apsouth242E1E678.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ap-south-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002apsoutheast1868C395D.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ap-southeast-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002apsoutheast2DB0112F0.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ap-southeast-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002apsoutheast3FC7F7215.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ap-southeast-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002apsoutheast4D1D52865.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ap-southeast-4"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002cacentral12B53A514.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ca-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002cawest1F96F5390.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-ca-west-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002eucentral1D6B1E887.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-eu-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002eucentral2DE4D33FA.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-eu-central-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002eunorth17B22D63D.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-eu-north-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002eusouth1F23BD9E7.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-eu-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002eusouth23ECE6AD5.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-eu-south-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002euwest2F1A6BF51.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-eu-west-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002euwest340F156C1.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-eu-west-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002ilcentral16876F965.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-il-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002mecentral10F5E9510.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-me-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002mesouth176B6F4A8.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-me-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002saeast1FAD8C4AF.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-sa-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002useast1536C8BA2.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-us-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002useast211EDE12B.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-us-east-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002uswest19E510473.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-us-west-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789002/InfrastructurePipelineStackStage123456789002Stack123456789002uswest2BF50BFEC.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789002-us-west-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003afsouth111648FBA.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-af-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003apeast163F172C8.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ap-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003apnortheast16047CF18.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ap-northeast-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003apnortheast2F0E7F5A0.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ap-northeast-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003apnortheast32ADB7D88.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ap-northeast-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003apsouth10AAC2BF0.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ap-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003apsouth2D70AEAC9.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ap-south-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003apsoutheast16D0FC8F0.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ap-southeast-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003apsoutheast2FB5FCC1F.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ap-southeast-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003apsoutheast356FC751C.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ap-southeast-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003apsoutheast4757670D0.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ap-southeast-4"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003cacentral19B2A9A26.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ca-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003cawest1E14E083B.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-ca-west-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003eucentral19F21F5D6.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-eu-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003eucentral289CB64A6.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-eu-central-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003eunorth134B0DAE1.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-eu-north-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003eusouth11F9E66BA.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-eu-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003eusouth23067775B.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-eu-south-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003euwest2D37CD1D1.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-eu-west-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003euwest350B35414.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-eu-west-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003ilcentral1C9E576C7.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-il-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003mecentral15743A928.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-me-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003mesouth1FAE1D361.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-me-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003saeast19C3B9507.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-sa-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003useast17B02A3D3.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-us-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003useast238196F94.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-us-east-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003uswest117F8A7A9.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-us-west-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789003/InfrastructurePipelineStackStage123456789003Stack123456789003uswest23FC39B3E.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789003-us-west-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004afsouth1EE59763C.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-af-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004apeast191D1E59B.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ap-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004apnortheast1DCEF24E6.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ap-northeast-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004apnortheast27F26CFE3.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ap-northeast-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004apnortheast349B5279D.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ap-northeast-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004apsouth106E826A5.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ap-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004apsouth2A772FBA1.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ap-south-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004apsoutheast1F3D6CBDF.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ap-southeast-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004apsoutheast2463FA3CD.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ap-southeast-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004apsoutheast3C9BF8705.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ap-southeast-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004apsoutheast4FC3AE12D.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ap-southeast-4"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004cacentral150DAAD89.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ca-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004cawest12423800D.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-ca-west-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004eucentral1D7A4CFE3.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-eu-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004eucentral250F06848.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-eu-central-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004eunorth1296091BA.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-eu-north-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004eusouth102FE31D3.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-eu-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004eusouth283DE98BA.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-eu-south-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004euwest2AB3726FD.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-eu-west-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004euwest3689D7C9F.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-eu-west-3"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004ilcentral1BE6000B7.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-il-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004mecentral1181220A1.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-me-central-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004mesouth11C1A8FC2.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-me-south-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004saeast11C91DA1A.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-sa-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004useast140DDCAB8.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-us-east-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004useast20C681DBC.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-us-east-2"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004uswest13582BC32.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-us-west-1"",
"cdk-assets --path "assembly-InfrastructurePipelineStack-Stage-123456789004/InfrastructurePipelineStackStage123456789004Stack123456789004uswest2C7009EF7.assets.json" --verbose publish "8acca95a9957d02a9f3ec124c9869c5d5b70a7fb3e332120850781ecc9363037:123456789004-us-west-2""
]
}
}
}
```

### Possible Solution

Split into multiple FileAction actions if build spec becomes too large.

### Additional Information/Context

_No response_

### CDK CLI Version

2.143.0 (build 9f2bdf7)

### Framework Version

_No response_

### Node.js Version

v18.18.2

### OS

Windows 10 Version 22H2

### Language

TypeScript

### Language Version

_No response_

### Other information

_No response_

Start at the FileAsset buildspec generation used by the CDK pipeline and inspect how the cdk-assets publish commands are assembled for each account and region. Reproduce the example with the provided pipeline, then verify that the resulting AWS CodeBuild buildspec stays within the 25600-character limit while publishing all required assets.

Written by the indexing model from the issue text.