Description of the Change

This Action was copied from our Plugin Deploy Action, with any non-relevant pieces removed. There have been a number of changes to that Action since so this PR brings over the couple that are relevant:

1. Handle dubious ownership error: Fixes #116: detected dubious ownership issue for github workspace. action-wordpress-plugin-deploy#119
2. Ensure changed files are added properly to release: Commit files that were built outside of the action action-wordpress-plugin-deploy#130

How to test the Change

Ensure the Action still works as expected

Changelog Entry

Fixed - Handle the error detected dubious ownership in repository at '/github/workspace' when using a .gitattributes file.
Fixed - Ensure built files are included when used without a BUILD_DIR and .distignore file.

Credits

Props @dkotter

Checklist:

• I agree to follow this project's Code of Conduct.
• I have updated the documentation accordingly.
• I have added Critical Flows, Test Cases, and/or End-to-End Tests to cover my change.
• All new and existing tests pass.