Ultralytics Actions JSON, CSS and autolabel support

[UltralyticsAssistant]

This pull request significantly enhances the Ultralytics Actions workflow, introducing support for JSON and CSS formatting, alongside intelligent issue and PR handling. This includes automatic labeling, spam detection, abuse identification, and off-topic filtering, all powered by OpenAI GPT-4o. These updates ensure a more efficient and organized workflow, adhering to the latest Ultralytics standards.

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Enhanced GitHub Actions workflow for code formatting in the Ultralytics repository.

📊 Key Changes

• Modified the GitHub Actions events to include more pull request states and issue opening.
• Updated the token handling from GITHUB_TOKEN to PERSONAL_ACCESS_TOKEN as fallback.
• Added new formatting capabilities to include Prettier for YAML, JSON, Markdown, and CSS.
• Disabled link checking, but retained spelling and formatting checks.
• Adjusted the OpenAI API key requirements for summary generation.

🎯 Purpose & Impact

• More Comprehensive Automation: Automates code formatting for a wider range of PR activities and issue creation, enhancing workflow efficiency.
• Improved Code Styling: Utilizes Prettier for a broader range of file formats, ensuring consistent styling across different file types.
• Streamlined Token Management: Falls back to a personal access token if available, improving token handling flexibility.
• Simplified Summaries: Provides automatic PR summaries using GPT-4, making it easier for maintainers and contributors to understand changes.