chore: update the git large files to include alpha modules integration zip assets (#34162)

### Issue # (if applicable)

Closes #<issue number here>.

### Reason for this change
Update the git attributes to add a new pattern of large files to include the zip assets in alpha modules. 

### 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)

----

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

Author: moelasmar

.gitattributes

@@ -18,3 +18,5 @@ packages/@aws-cdk-testing/framework-integ/test/**/*.snapshot/**/asset*.zip filte
 packages/@aws-cdk/*-alpha/test/**/*.snapshot/**/asset*.zip filter=lfs diff=lfs merge=lfs -text
 packages/@aws-cdk/*-alpha/test/*.snapshot/asset.*/bootstrap filter=lfs diff=lfs merge=lfs -text
 packages/@aws-cdk-testing/framework-integ/test/aws-s3-deployment/test/integ.bucket-deployment-large-file/asset*/large*  filter=lfs diff=lfs merge=lfs -text
+packages/@aws-cdk/*-alpha/test/*.snapshot/asset*.zip filter=lfs diff=lfs merge=lfs -text
+packages/@aws-cdk-testing/framework-integ/test/**/*.snapshot/asset*.zip filter=lfs diff=lfs merge=lfs -text