Bump sphinx from 5.3.0 to 7.3.6 #1858

Job	Run time
GPU Tests	15s
python 3.9 - Lint	1m 17s
python 3.9 - Type check	1m 35s
python 3.9 - Build	1m 12s
python 3.9 - Style	20s
python 3.9 - Docs	1m 17s
python 3.9 - Test	16s
python 3.9 - Datasets integration	24s
python 3.9 - PyTorch integration	39s
python 3.9 - Transformers integration	1m 19s
python 3.9 - FairScale integration	43s
python 3.9 - W&B integration	1m 13s
python 3.9 - Beaker integration	22s
python 3.9 - Flax integration	54s
python 3.9 - GS integration	19s
python 3.9 - Example - train_lm	1m 14s
python 3.8 - Test	17s
python 3.10 - Test	23s
Release	0s
	13m 59s

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