feat(codepipeline): branches and files support in git push filter L2 construct (#33872)

branches and files in git push filter in codepipeline L2 construct 

Refer to the README content of reverted pr:(https://github.com/aws/aws-cdk/pull/30462/files). Credit to @go-to-k 

### Issue # 31009(#31009)


### Reason for this change

Branches and files in git push filter under codepipeline trigger has been supported last year, and cdk library didn't support this feature yet.

### Description of changes

Support ranches and files in git push filter under codepipeline trigger.

### Describe any new or updated permissions being added

No


### Description of how you validated changes

Unit test/Integ test/ local deployment

### 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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*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: hwum