feat(redshiftserverless): update L1 CloudFormation resource definitions (#33911)

### Description of changes

No-op PR to automatically include breaking change in the CHANGELOG. See #33906 for details.

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

BREAKING CHANGE: The `CfnWorkgroup.attrWorkgroupMaxCapacity` attribute has been removed.

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Author: Leo10Gama