DX: define developer environment with `uv` #538

Job	Run time
pytest / Determine job matrix	8s
style / Determine skipped pre-commit hooks	12s
doc / nb / Execute and build documentation	41s
doc / linkcheck / Check external links	52s
pytest / Run unit tests (3.10, ubuntu-24.04)	1m 8s
pytest / Run unit tests (3.11, ubuntu-24.04)	1m 0s
pytest / Run unit tests (3.9, ubuntu-24.04)	1m 9s
pytest / Run unit tests (3.12, ubuntu-24.04, qrules)	1m 9s
pytest / Run unit tests (3.9, macos-14)	56s
style / Run local pre-commit hooks	50s
style / Run taplo through pre-commit	0s
doc / Upload to GitHub Pages	0s
style / Push changes	1s
	8m 6s

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