Delete .github/dependabot.yml

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Removal of the Dependabot configuration file from the YOLOv3 repository.

📊 Key Changes

• Deleted .github/dependabot.yml which configured automated dependency updates for pip and GitHub Actions.

🎯 Purpose & Impact

• Purpose: To stop automatic dependency update processes managed by Dependabot, likely to regain manual control over dependency updates.
• Impact: Users and developers will no longer receive automated dependency update PRs for pip and GitHub Actions, necessitating manual checks and updates, potentially leading to more consistent dependency management practices aligned with team strategies.