Update requirements.txt to numpy>=1.23.5

[glenn-jocher]

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🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Update to minimum required version of NumPy for YOLOv5.

📊 Key Changes

• Updated the minimum version of NumPy from 1.22.2 to 1.23.5 in requirements.txt.

🎯 Purpose & Impact

• Enhanced Compatibility: Ensures YOLOv5 is compatible with newer features and improvements available in NumPy 1.23.5.
• Improved Stability & Performance: Helps prevent potential bugs or performance issues that could arise from using older versions of NumPy.
• Impact on Users: Users may need to upgrade their NumPy package to meet this new requirement, which could mean better stability and access to the latest NumPy functionalities.