Use encoding_formats in test_utils.py. #10780

Job	Run time
Check whether we should run tests or not	10s
Github API tests	2m 44s
HuggingFace Python 3.10 tests	2m 37s
Notebook tests	6m 43s
Core TFDS tests / Generate shards	1s
Core TFDS tests / [Python 3.10][1/4]	5m 23s
Core TFDS tests / [Python 3.11][1/4]	4m 42s
Core TFDS tests / [Python 3.12][1/4]	5m 37s
Core TFDS tests / [Python 3.10][2/4]	4m 57s
Core TFDS tests / [Python 3.11][2/4]	4m 22s
Core TFDS tests / [Python 3.12][2/4]	4m 58s
Core TFDS tests / [Python 3.10][3/4]	4m 48s
Core TFDS tests / [Python 3.11][3/4]	5m 9s
Core TFDS tests / [Python 3.12][3/4]	6m 6s
Core TFDS tests / [Python 3.10][4/4]	5m 28s
Core TFDS tests / [Python 3.11][4/4]	5m 8s
Core TFDS tests / [Python 3.12][4/4]	6m 15s
	1h 15m 8s

Provide feedback