xfail test_mitgcm for "auto" chunk_mode #282

Job	Run time
py3.12 \| macos \| integration tests	19m 15s
mypy	3m 56s
py3.12 \| macos \| unit tests	8m 35s
py3.12 \| ubuntu \| integration tests	17m 42s
py3.12 \| ubuntu \| unit tests	13m 53s
py3.12 \| windows \| integration tests	31m 47s
py3.12 \| windows \| unit tests	22m 46s
py3.10 \| ubuntu \| unit tests	12m 39s
py3.11 \| ubuntu \| unit tests	12m 29s
merge-test-artifacts	3s
	2h 23m 5s

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