feat(repository): add new check repository_merging_requires_conversation_resolution

[HugoPBrito]

Context

Code changes often come with reviewer feedback, which can include suggestions for improvements, bug fixes, or security concerns. Unaddressed open comments could result in unreviewed issues being merged into the codebase, potentially introducing errors or vulnerabilities. Ensuring that all comments are resolved before merging code enforces accountability and ensures that concerns are addressed in a timely manner.

Description

This check ensures that all open comments are resolved before allowing a code change to be merged. By enforcing this rule, organizations make sure that all issues raised by reviewers, whether they are related to bugs, security, or code quality, are properly acknowledged and acted upon. This policy helps maintain the integrity and quality of the codebase.

Checklist

• Are there new checks included in this PR? Yes.
  • If so, do we need to update permissions for the provider? No.
• Review if the code is being covered by tests.
• Review if code is being documented following this specification https://github.com/google/styleguide/blob/gh-pages/pyguide.md#38-comments-and-docstrings
• Review if backport is needed.

License

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