Update to ultralytics/action in CI

[glenn-jocher]

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🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Improvements to Automatic Code Formatting Workflow and Code Documentation Enhancements

📊 Key Changes

• Renamed the GitHub Actions workflow to "Ultralytics Format" for clarity.
• Simplified the formatting job to use a custom Ultralytics action.
• The workflow now triggers on pushes to the main branch and pull requests.
• Expanded the add_numbers function's docstring for better clarity.
• Added new utility functions with clear docstrings, promoting code readability.

🎯 Purpose & Impact

• For Users: This PR brings more readable and well-documented code, making it easier to understand and use the functions provided.
• For Contributors: The streamlined automatic formatting process ensures consistent code style without manual intervention, improving productivity and code quality for future contributions. 🛠️
• For the Repo: A custom Ultralytics action makes the codebase maintenance simpler and more aligned with internal processes. 🚀