Bump sphinx from 7.3.7 to 8.0.2

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.3.7 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@v7.3.7...v8.0.2)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -66,7 +66,7 @@ dev = [
  "mypy==v1.4.1 ; python_version>='3.7' and python_version<'3.8'",
  "mypy==v1.11.2 ; python_version>='3.8'",
  # Docs.
- "Sphinx==7.3.7 ; python_version>='3.9'",
+ "Sphinx==8.0.2 ; python_version>='3.9'",
  "sphinx-autobuild==2024.9.19 ; python_version>='3.9'",
  "sphinx-rtd-theme==2.0.0 ; python_version>='3.9'"
 ]