Update plots.py

[Anon-Artist]

Fix for Arbitary Code Execution

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Improved security in hyperparameter loading within YOLOv5 plotting utility.

📊 Key Changes

• Changed YAML loader from FullLoader to SafeLoader in the plot_evolution function.

🎯 Purpose & Impact

• 🛡️ Security: The update to SafeLoader prevents potential security vulnerabilities associated with loading YAML files, like executing arbitrary code.
• 🧬 Reliability: Ensures hyperparameter loading is done safely, promoting more robust and secure code within the YOLOv5 repository.
• 🔍 User Trust: Users can have increased confidence in the safety of the code they are running.

[github-actions]

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

• ✅ Verify your PR is up-to-date with origin/master. If your PR is behind origin/master update by running the following, replacing 'feature' with the name of your local branch:

git remote add upstream https://github.com/ultralytics/yolov5.git
git fetch upstream
git checkout feature  # <----- replace 'feature' with local branch name
git rebase upstream/master
git push -u origin -f

• ✅ Verify all Continuous Integration (CI) checks are passing.
• ✅ 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