api-gateway: Unable to create cross-partition Cognito User Pool Authorizer

### Describe the bug

I want to authenticate an api gateway rest api in us commercial cloud to a Cognito User Pool in us-gov cloud. When I try this, I get `ProviderARNs need to be valid Cognito Userpools`.

I know I can make my own token authorizer or request authorizer, but a user pool authorizer would be more convenient.

### Regression Issue

- [ ] Select this option if this issue appears to be a regression.

### Last Known Working CDK Version

_No response_

### Expected Behavior

Authorizer is created

### Current Behavior

Authorizer is not created, and CDK deployment fails with `ProviderARNs need to be valid Cognito Userpools. Invalid ARNs-
arn:aws-us-gov:cognito-idp:us-gov-west-1:...`

### Reproduction Steps

```
// cdk project running in us-west-2, for example

const userPool = UserPool.fromUserPoolArn(this,'eup', )

const authorizer = new CognitoUserPoolsAuthorizer(this, 'apiauth', {
cognitoUserPools: [
userPool
],
})
```

### Possible Solution

_No response_

### Additional Information/Context

_No response_

### CDK CLI Version

2.162.0 (build c8d7dd3)

### Framework Version

_No response_

### Node.js Version

v20.17.0

### OS

macOS

### Language

TypeScript

### Language Version

5.6.2

### Other information

_No response_

Start by tracing CognitoUserPoolsAuthorizer and UserPool.fromUserPoolArn using the supplied TypeScript reproduction. Check how the authorizer validates the cross-partition Cognito ARN, then verify that an API Gateway REST API in the commercial cloud can be created with the us-gov user pool and the deployment no longer reports an invalid ARN.

Written by the indexing model from the issue text.