Add Ultralytics actions workflow in format.yml

[UltralyticsAssistant]

This pull request adds a workflow to automatically format code and documentation.

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Implementation of an automated formatting workflow for code and documentation.

📊 Key Changes

• Added a new GitHub Actions workflow file format.yml that triggers on pushes and pull requests to the main and master branches.
• The workflow runs on the latest Ubuntu runner provided by GitHub Actions.
• It checks out the repository and then uses a custom action ultralytics/actions@main to format the code and documentation.

🎯 Purpose & Impact

• The purpose is to ensure consistent code and documentation formatting across all contributions to the Ultralytics repository.
• This automation will enhance code quality, improve readability, and reduce the time maintainers spend on manual formatting reviews.
• The impact for contributors is that their submissions will be automatically formatted, simplifying the contribution process and fostering better collaboration.