aws-rds: possible regression with global endpoint address

### Describe the bug

There seems to have been a regression with `aws-rds`. The `globalEndpoint` has been removed/changed with release [v2.180.0](https://github.com/aws/aws-cdk/releases/tag/v2.180.0).

### Regression Issue

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

### Last Known Working CDK Version

v2.179.0

### Expected Behavior

When trying to use the globalEndpoint you should be able to get the address of it.

### Current Behavior

You currently get the following error on version 2.180.0 and above:
> Property 'globalEndpoint' does not exist on type 'CfnGlobalCluster'. Did you mean 'attrGlobalEndpoint'?ts(2551)
rds.generated.d.ts(4941, 14): 'attrGlobalEndpoint' is declared here.

### Reproduction Steps

run `cdk synth` on the following minimal project:

```typescript
import * as cdk from 'aws-cdk-lib';
import * as rds from 'aws-cdk-lib/aws-rds';
import * as r53 from 'aws-cdk-lib/aws-route53';
import type { Construct } from 'constructs';

export class CdkReproStack extends cdk.Stack {
constructor(scope: Construct, id: string, props?: cdk.StackProps) {
super(scope, id, props);

//global cluster
const cfnGlobalCluster = new rds.CfnGlobalCluster(this, 'cfnGlobalCluster', {
sourceDbClusterIdentifier: new rds.CfnDBCluster(this, 'cfnDBCluster', {
}).ref,
});

//example usage of globalEndpoint
if (cfnGlobalCluster.globalEndpoint/** <--error is here */ && !cdk.Token.isUnresolved(cfnGlobalCluster.globalEndpoint/** <--error also here */)) {
new r53.CnameRecord(this, 'cNameRecord', {
zone: r53.HostedZone.fromHostedZoneAttributes(this, 'hZone', {
hostedZoneId: 'id',
zoneName: 'name',
}),
recordName: 'globaldb',
domainName: (cfnGlobalCluster.globalEndpoint/** <--error also here */ as { address: string }).address,
ttl: cdk.Duration.seconds(5),
});
}
}
}
```

### Possible Solution

_No response_

### Additional Information/Context

_No response_

### CDK CLI Version

2.180.0

### Framework Version

_No response_

### Node.js Version

v22.13.1

### OS

MacOS Sequoia 15.3.1

### Language

TypeScript

### Language Version

_No response_

### Other information

_No response_

Reproduce the issue with the minimal TypeScript project and run cdk synth against CDK v2.179.0 and v2.180.0. Compare the generated rds.generated.d.ts declarations around CfnGlobalCluster, then verify that the global endpoint can be accessed without the reported TypeScript error and the project synthesizes successfully.

Written by the indexing model from the issue text.