Fresh deployment of WebAppStack fails

[mkleszcz]

Describe the bug
Fresh deployment of WebAppStack fails because of the new S3 default policy.

To Reproduce
Steps to reproduce the behavior:

1. Install all global infra and push the code so new env should be deployed.
2. There will ba an error in WebAppStack deployment: API: s3:PutBucketPolicy Access Denied

Expected behavior
Initial stack deployment should be successful.