bump version

Bump to 0.5.2

Cameras (#198)

* opencv_lens_undistortion

* fix k4 bug for undistortion, support fisheye

* support k3 k4 k5 k6

* fix _opencv_len_distortion; format

* naming: len->lens

Update README.md

Complete docs for 0.5.0 (#184)

* missing docs for the 4 dropin examples

* fix docs

* profiling in coding.rst

scatter_add_ -> index_add_ (#179)

restore hook; fix workflow instead

Update README.md

v0.3.3 (#148)

Update pyproject.toml