ci(action-scripts): add action scripts build check in CI

[Myastr0]

Add CI check for action scripts build

Description

This PR adds a new CI job to the tests workflow that ensures GitHub Action scripts are properly built and in sync with the source code.

Changes

• Added check-action-scripts-build job to .github/workflows/tests.yaml
• The job builds action scripts using yarn build:actions and verifies they are in sync with the repository state
• This prevents issues where action scripts might be out of sync with the source code

Why

While the action scripts are built locally via the pre-commit hook, this CI check ensures:

1. Action scripts are always built correctly in the CI environment
2. Any uncommitted build artifacts are detected before merging
3. Consistency between local and CI environments

Testing

• Does your submission pass tests?
• Have you lint your code locally before submission?
• Have you successfully run tests with your changes locally?

Checklist

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Have you added an explanation of what your changes do and why you'd like us to include them?

[Myastr0]

👋 Hi, Myastr0! Thanks for opening a PR. We will review it soon.
If you have any questions, feel free to join the #need-help channel on the Discord server