Update sphinx version #19791

Job	Run time
telemetry-setup	6s
check-nightly-ci	9s
checks / other-checks	55s
checks / check-style	1m 44s
devcontainer / amd64, 12.5, conda	24m 47s
changed-files / Check changed files	23s
devcontainer / amd64, 12.5, pip	7m 49s
conda-cpp-build / compute-matrix	4s
static-configure / build	3m 54s
wheel-build-libcudf / compute-matrix	3s
cpp-linters / build	5m 48s
wheel-build-libcudf / 11.8.0, 3.12, amd64, rockylinux8	4m 15s
wheel-build-libcudf / 12.5.1, 3.12, amd64, rockylinux8	3m 41s
wheel-build-libcudf / 11.8.0, 3.12, arm64, rockylinux8	4m 18s
wheel-build-libcudf / 12.5.1, 3.12, arm64, rockylinux8	4m 27s
conda-cpp-build / 11.8.0, 3.10, amd64, rockylinux8	6m 50s
conda-cpp-build / 12.5.1, 3.10, amd64, rockylinux8	6m 25s
conda-cpp-build / 11.8.0, 3.10, arm64, rockylinux8	7m 6s
conda-cpp-build / 12.5.1, 3.10, arm64, rockylinux8	6m 28s
wheel-build-pylibcudf	0s
wheel-build-cudf-polars	0s
wheel-build-cudf	0s
cudf-polars-polars-tests	0s
wheel-tests-cudf-polars	0s
wheel-build-dask-cudf	0s
wheel-tests-cudf	0s
pandas-tests	0s
unit-tests-cudf-pandas	0s
wheel-tests-dask-cudf	0s
pandas-tests-diff	0s
conda-cpp-checks	0s
conda-cpp-tests	0s
conda-python-build	0s
conda-java-tests	0s
conda-python-other-tests	0s
conda-notebook-tests	0s
conda-python-cudf-tests	0s
docs-build	0s
pr-builder / run	1s
telemetry-summarize	16s
	1h 29m 29s

Provide feedback