pin zarr<3 #443

Job	Run time
mypy	3m 39s
py3.13 \| macos \| integration tests	14m 14s
py3.13 \| macos \| unit tests	9m 54s
py3.13 \| ubuntu \| integration tests	17m 10s
py3.13 \| ubuntu \| unit tests	13m 8s
py3.13 \| windows \| integration tests	28m 33s
py3.13 \| windows \| unit tests	21m 37s
py3.10 \| ubuntu \| integration tests	17m 58s
py3.10 \| ubuntu \| unit tests	12m 37s
py3.11 \| ubuntu \| unit tests	12m 27s
py3.12 \| ubuntu \| unit tests	13m 59s
merge-test-artifacts	1s
	2h 45m 17s

Provide feedback