Add a maxfail arg to the MD pytest runs so they fail quickly #306

Job	Run time
code-quality	2m 11s
file-based functional test / python 3.8	5m 46s
file-based functional test / python 3.9	4m 25s
file-based functional test / python 3.10	4m 31s
file-based functional test / python 3.11	4m 4s
functional test / python 3.8	4m 37s
functional test / python 3.9	4m 4s
functional test / python 3.10	4m 13s
functional test / python 3.11	3m 54s
unit test / python 3.8	1m 19s
unit test / python 3.9	1m 18s
unit test / python 3.10	1m 7s
unit test / python 3.11	1m 1s
Buena Vista functional test / python 3.9	12m 16s
fsspec test / python 3.9	1m 13s
plugins test / python 3.9	1m 5s
MotherDuck functional test / python 3.9	6m 48s
build packages	14s
verify packages / python 3.8 / ubuntu-latest	50s
verify packages / python 3.9 / ubuntu-latest	43s
verify packages / python 3.10 / ubuntu-latest	34s
verify packages / python 3.11 / ubuntu-latest	47s
verify packages / python 3.8 / macos-latest	1m 18s
verify packages / python 3.9 / macos-latest	1m 13s
verify packages / python 3.10 / macos-latest	1m 21s
verify packages / python 3.11 / macos-latest	1m 20s
verify packages / python 3.8 / windows-latest	2m 7s
verify packages / python 3.9 / windows-latest	2m 15s
verify packages / python 3.10 / windows-latest	2m 14s
verify packages / python 3.11 / windows-latest	2m 20s
	1h 21m 8s

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