Fix EdgeTPU output directory

[glenn-jocher]

Outputs to same directory as --weights

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Improved Edge TPU model export functionality in export.py.

📊 Key Changes

• Modified the edgetpu_compiler command to specify the output directory for the compiled Edge TPU model.

🎯 Purpose & Impact

• 🎯 Purpose:
  • Ensures the Edge TPU compiled models are saved in the same directory as the source model, making it easier for users to locate their files.
• 🚀 Impact:
  • Users will benefit from better file organization and a more streamlined export process when working with Edge TPU models, resulting in a smoother development and deployment experience.