Fix OpenVINO export

[glenn-jocher]

Resolves #11645

🤖 Generated by Copilot at 8705789

Summary

🆕🐛🎨

This pull request improves the compatibility and readability of the export.py file for exporting YOLOv5 models to OpenVINO format. It updates the OpenVINO package and API usage, and fixes some export command and regex syntax.

Sing, O Muse, of the skillful coder who updated export.py
To match the latest OpenVINO, the swift and powerful package
That transforms the models of machine learning with its API
And makes them run on diverse devices, from cloud to edge.

Walkthrough

• Update OpenVINO export function to use new package and API (link)

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Update to OpenVINO model export process for better compatibility and simplicity.

📊 Key Changes

• Updated the minimum required version of openvino-dev to 2022.3.
• Switched from openvino.inference_engine to openvino.runtime, aligning with OpenVINO's new API.
• Used openvino.tools.mo module for model conversion, replacing the previous subprocess call to the Model Optimizer CLI.
• Simplified export file path handling and file naming for clarity and consistency.
• Performed export and serialization using the new OpenVINO Python API directly within the Python script.

🎯 Purpose & Impact

• 🚀 Up-to-date Requirements: Ensures compatibility with the latest OpenVINO tools and practices.
• 💡 API Utilization: Adopts the latest OpenVINO Python API for a more integrated and potentially more reliable export process.
• ✅ Simplified Process: Reduces the complexity of commands and environment handling for exporting models.
• 📁 File Handling Improvements: Enhances the file path management leading to fewer errors and a more standardized output.
• Users can expect a smoother and potentially faster export experience with the added benefit of keeping up with current OpenVINO standards.