Edge TPU add --search_delegate fix

[glenn-jocher]

Resolves #8842

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Enhanced Edge TPU model export with extra compiler options.

📊 Key Changes

• 🛠️ Modified the edgetpu_compiler command in export.py.
• 🤏 Added flags for more detailed compiler output (-d), keeping intermediate files (-k 10), and specifying an output directory (--out_dir).

🎯 Purpose & Impact

• ⚙️ Providing more transparency during the compilation by including detailed logs.
• 📁 Helping with debugging and analysis by retaining intermediate compilation files.
• 🗂️ Organizing compiled models by directing them to a specified output directory.
• ✨ These changes could improve the developer's experience with more informative feedback and better file management during Edge TPU export.