Update Dockerfile-arm64 to libpython3-dev

[glenn-jocher]

Signed-off-by: Glenn Jocher [email protected]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Update to the YOLOv5 Dockerfile for ARM64 architecture.

📊 Key Changes

• Removed the explicit version dependency "libpython3.8-dev" and replaced it with a generic "libpython3-dev".
• Simplified package installation command by merging multiple RUN statements into one.

🎯 Purpose & Impact

• Flexibility: By avoiding a specific Python library version, the Docker image gains better compatibility with future versions of Python.
• Simplicity & Maintenance: The change may also reduce maintenance efforts when upgrading the operating system or Python versions.
• Streamlined Builds: Consolidation of RUN statements minimizes the number of layers in the Docker image, potentially leading to faster builds and smaller image sizes.
• User Experience: This update can improve users' experience by ensuring broader compatibility. While mostly behind the scenes, it's a foundational improvement for developers using ARM64 machines.