Tests

Bump sphinx from 7.4.7 to 8.0.2 in /docs #1908

Job	Run time
test-on-windows	2m 7s
tests (3.9)	1m 35s
tests (3.10)	1m 28s
check-repo-format	18s
coverage	2m 23s
tests (3.11)	1m 19s
pyright-scan-docs	50s
tests (3.12)	1m 42s
python-38	1m 30s
run-mypy	22s
run-pyright	25s
smoke-test-pydantic-v2	1m 33s
test-against-pre-releases-of-dependencies	1m 29s
test-docs-builds	37s
test-minimum-dependencies	1m 29s
test-third-party	3m 41s
	22m 48s

Provide feedback