Fix tfds builders that try to access gcs even though the data is local. #9506

Job	Run time
Check whether we should run tests or not	9s
HuggingFace Python 3.10 tests	2m 55s
Notebook tests	9m 12s
Github API tests	4m 13s
Core TFDS tests / Generate shards	1s
Core TFDS tests / [Python 3.10][1/4]	6m 8s
Core TFDS tests / [Python 3.11][1/4]	5m 48s
Core TFDS tests / [Python 3.12][1/4]	7m 0s
Core TFDS tests / [Python 3.10][2/4]	5m 34s
Core TFDS tests / [Python 3.11][2/4]	6m 54s
Core TFDS tests / [Python 3.12][2/4]	5m 26s
Core TFDS tests / [Python 3.10][3/4]	5m 30s
Core TFDS tests / [Python 3.11][3/4]	5m 56s
Core TFDS tests / [Python 3.12][3/4]	6m 2s
Core TFDS tests / [Python 3.10][4/4]	5m 37s
Core TFDS tests / [Python 3.11][4/4]	5m 45s
Core TFDS tests / [Python 3.12][4/4]	5m 59s
	1h 28m 9s

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