Revert "ci: downgrade sphinx to v3.x"

The readthedocs theme now supports Sphinx 4.x, so there's no longer any
reason to stick with 3.x.

This reverts commit a545b6eda040ee40b5c36533d7ae378fc24fcf09.

Reviewed-by: Hoe Hao Cheng <haochengho12907@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15212>

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 357996a..b7a9835 100644 (file)
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -125,7 +125,7 @@ stages:
     - .ci-run-policy
   script:
   - apk --no-cache add graphviz doxygen
-  - pip3 install "sphinx<4.0" breathe mako sphinx_rtd_theme
+  - pip3 install sphinx breathe mako sphinx_rtd_theme
   - docs/doxygen-wrapper.py --out-dir=docs/doxygen_xml
   - sphinx-build -W -b html docs public