Use uv workspaces #1078

Job	Run time
Collect changes / collect-changes	13s
Python tests / lint-and-format-check	10s
Python tests / types-check	1m 34s
Python tests / unit-tests (py313)	3m 32s
Python tests / unit-tests (py311)	2m 58s
Python tests / unit-tests (py39)	2m 59s
Python tests / unit-tests (py310)	2m 56s
Python tests / unit-tests (py312)	8m 36s
status-check	2s
	23m 0s

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