Update detect.py

[kar358]

Description

OpenCV's cv2 doesn't work with the latest raspberry pi OS / camera module configs, so I replaced the library with picamera2.
This version no longer requires searching for a camera ID parameter.

Fixes # (issue)

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• Bug fix (non-breaking change which fixes an issue)
• Documentation update (non-breaking change which updates documentation)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

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