Bump sphinx from 7.2.6 to 8.0.2 in /docs

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.2.6 to 8.0.2. - [Release notes](https://github.com/sphinx-doc/sphinx/releases) - [Changelog](https://github.com/sphinx-doc/sphinx/blob/v8.0.2/CHANGES.rst) - [Commits](sphinx-doc/sphinx@v7.2.6...v8.0.2) --- updated-dependencies: - dependency-name: sphinx dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

docs/requirements.txt

@@ -1,4 +1,4 @@
-sphinx==7.3.7
+sphinx==8.0.2
 sphinx-book-theme>=1.0.1
 sphinx-click==5.0.1
 myst_parser==4.0.0