Update action.yml to Autolabel Issues

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

This PR enhances Ultralytics GitHub Actions by introducing automatic labeling for issues and pull requests.

📊 Key Changes

• Event Handling: Added support for issues events in the workflow.
• Auto-labeling: Introduced a new input to enable/disable auto-labeling for issues and PRs.
• OpenAI Integration: Added a script to utilize OpenAI for automatically generating relevant labels.
• Conditional Formatting: Adjusted conditional checks for formatting and error-checking steps.

🎯 Purpose & Impact

• Enhanced Workflow Automation: By adding automatic labeling, the workflow management becomes more efficient and organized.
• Reduced Manual Effort: Developers and maintainers save time as issues and PRs get labeled automatically based on their content.
• Improved Consistency: Helps in maintaining consistent labeling, ensuring better categorization and easier searchability.