Test

fix: validate that dask-style chunks have regular shapes #6440

Job	Run time
os=ubuntu-latest, py=3.12, deps=optional	46s
os=ubuntu-latest, py=3.12, deps=minimal	36s
os=macos-latest, py=3.13, deps=optional	49s
os=windows-latest, py=3.13, deps=optional	42s
os=macos-latest, py=3.11, deps=optional	48s
os=ubuntu-latest, py=3.11, deps=optional	46s
os=windows-latest, py=3.11, deps=optional	37s
os=ubuntu-latest, py=3.13, deps=minimal	30s
os=ubuntu-latest, py=3.13, deps=optional	46s
py=3.11-min_deps	1m 13s
doctests	38s
py=3.13-upstream	1m 28s
os=ubuntu-latest, py=3.11, deps=minimal	35s
Test complete	4s
	10m 18s

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