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 Docs

📊 Key Changes

• Created a new GitHub Actions workflow file named format.yml.
• This workflow triggers on pushes and pull requests to the main and master branches.
• It sets up the workflow to run on the latest Ubuntu runners.
• Defines steps to check out the repo and run formatting actions using Ultralytics' custom GitHub Actions.

🎯 Purpose & Impact

• Purpose: To ensure consistent code and documentation formatting across all contributions.
• Impact: Contributes to cleaner codebases and documentation, making it easier for developers and users to read and contribute. Automating the process enhances efficiency and prevents human errors related to formatting. 🛠️ Users can expect a smoother experience when navigating code and docs, thanks to standardized presentation. 📑

[github-actions]

👋 Hello @UltralyticsAssistant, thank you for submitting a YOLOv8 🚀 PR! To allow your work to be integrated as seamlessly as possible, we advise you to:

• ✅ Verify your PR is up-to-date with ultralytics/ultralytics main branch. If your PR is behind you can update your code by clicking the 'Update branch' button or by running git pull and git merge main locally.
• ✅ Verify all YOLOv8 Continuous Integration (CI) checks are passing.
• ✅ Update YOLOv8 Docs for any new or updated features.
• ✅ Reduce changes to the absolute minimum required for your bug fix or feature addition. "It is not daily increase but daily decrease, hack away the unessential. The closer to the source, the less wastage there is." — Bruce Lee

See our Contributing Guide for details and let us know if you have any questions!