Improve Robustness and Error Handling in ImageFolder Dataset Builder #9492

Job	Run time
Check if tests should be run	1s
Github API tests	3m 32s
HuggingFace Python 3.10 tests	3m 9s
Generate shards	1s
Notebook tests	7m 14s
[ubuntu-latest][tensorflow][Python 3.10][1/4] Core TFDS tests	5m 36s
[ubuntu-latest][tensorflow][Python 3.11][1/4] Core TFDS tests	5m 52s
[ubuntu-latest][tensorflow][Python 3.12][1/4] Core TFDS tests	6m 11s
[ubuntu-latest][tensorflow][Python 3.10][2/4] Core TFDS tests	5m 23s
[ubuntu-latest][tensorflow][Python 3.11][2/4] Core TFDS tests	5m 15s
[ubuntu-latest][tensorflow][Python 3.12][2/4] Core TFDS tests	5m 14s
[ubuntu-latest][tensorflow][Python 3.10][3/4] Core TFDS tests	5m 36s
[ubuntu-latest][tensorflow][Python 3.11][3/4] Core TFDS tests	5m 39s
[ubuntu-latest][tensorflow][Python 3.12][3/4] Core TFDS tests	6m 32s
[ubuntu-latest][tensorflow][Python 3.10][4/4] Core TFDS tests	5m 53s
[ubuntu-latest][tensorflow][Python 3.11][4/4] Core TFDS tests	5m 50s
[ubuntu-latest][tensorflow][Python 3.12][4/4] Core TFDS tests	6m 8s
	1h 23m 6s

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