DX: define developer environment with `uv` #565

Job	Run time
pytest / Determine job matrix	5s
style / Determine skipped pre-commit hooks	7s
doc / nb / Execute and build documentation	2m 17s
doc / linkcheck / Check external links	46s
pytest / Run unit tests (3.10, ubuntu-24.04)	2m 12s
pytest / Run unit tests (3.11, ubuntu-24.04)	2m 6s
pytest / Run unit tests (3.9, ubuntu-24.04)	1m 58s
pytest / Run unit tests (3.12, ubuntu-24.04, qrules)	2m 41s
pytest / Run unit tests (3.9, macos-14)	1m 10s
style / Run local pre-commit hooks	47s
style / Run taplo through pre-commit	0s
style / Push changes	0s
doc / Upload to GitHub Pages	0s
	14m 9s

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