Move to shapely 2 for minimum bounding rectangle (rotated) and minimum bounding circle

[ljwolf]

This would address #70, #69

[martinfleis]

I would wait with minimum bounding rectangle for GEOS 3.12 that will contain a fixed algorithm for this, resulting in identical geoms OpenCV produces. The circle can be done now, we just need to extract the tuple of x, y and radius from the actual polygon (as centroid and a distance to first point).