Tests

Bump sphinx from 1.8.1 to 9.1.0 #32606

Job	Run time
Python 3.13t on ubuntu-22.04 Free-threaded	18m 2s
Python 3.14 on ubuntu-24.04	14m 17s
Python 3.12 on ubuntu-24.04-arm	12m 56s
Python 3.12 on macos-14	17m 58s
Python 3.12 on ubuntu-24.04	18m 19s
Python 3.13 on macos-15	15m 5s
Python 3.11 on ubuntu-22.04	17m 39s
Python 3.14 on macos-15	19m 19s
Python 3.13 on ubuntu-22.04 (Extra TeX packages)	18m 14s
Python 3.11 on macos-14	13m 48s
Python 3.11 on ubuntu-22.04 (Minimum Versions)	18m 18s
Create issue on failure	0s
	3h 3m 55s

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