Add check_yaml() to benchmarks.py

[glenn-jocher]

Locate file in subdirectories.

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Enhanced configuration validation in YOLOv5 benchmark utility.

📊 Key Changes

• Imported check_yaml function in benchmarks.py.
• Added a call to check_yaml to validate the YAML file specified by opt.data.

🎯 Purpose & Impact

• 🛠️ Improvement of User Experience: Ensures users provide valid YAML configuration files when running benchmarks.
• 🔍 Enhanced Robustness: Prevents potential errors caused by malformed YAML, leading to smoother benchmarking processes.
• ✅ Increased Usability: Helps users quickly identify and correct issues with their configuration files.