feat(ec2): add interface endpoint dynamodb (#30162)

### Issue # (if applicable)

Closes #29547

### Reason for this change



### Description of changes
Add DynamoDB interface endpoint and validation

### Description of how you validated changes
Added unit tests and integ test.



### 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)

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