Bump sphinx from 7.2.6 to 8.0.2 (#674)

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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements/requirements_docs.txt

@@ -3,7 +3,7 @@ imageio==2.34.0
 numpydoc==1.8.0
 imageio-ffmpeg==0.5.1
 Sphinx<7.2.0; python_version == '3.8'
-Sphinx==7.2.6; python_version >= '3.9'
+Sphinx==8.0.2; python_version >= '3.9'
 sphinx-autobuild==2024.4.16
 sphinxcontrib-napoleon==0.7
 sphinxcontrib-websupport==1.2.7