Bump sphinx from 5.0.1 to 5.0.2 in /docs (#284)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 5.0.1 to 5.0.2.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/5.x/CHANGES)
- [Commits](sphinx-doc/sphinx@v5.0.1...v5.0.2)

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

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