This pull request updates GitHub Actions workflow configuration files to
ensure that automated checks and labeling only run for pull requests
targeting specific branches, primarily `main`. This helps prevent
workflows from running unnecessarily on other branches and tightens
control over automation.
Workflow branch targeting updates:
* Updated `.github/workflows/auto-labelerV2.yml` to trigger the Auto
Pull Request Labeler V2 workflow only when pull requests target the
`main` or `V2` branches.
* Updated `.github/workflows/check_properties.yml` to trigger the check
only for pull requests targeting the `main` branch.
Workflow execution condition:
* Added a condition to the `check-files` job in
`.github/workflows/check_properties.yml` so it only runs if the pull
request's base branch is `main`.
