Bump sphinx from 6.1.3 to 7.0.0 (#427)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 6.1.3 to 7.0.0.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES)
- [Commits](sphinx-doc/sphinx@v6.1.3...v7.0.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements-dev.txt

@@ -14,7 +14,7 @@ pytest-cov==4.0.0
 pytest-faulthandler==2.0.1
 pytest-sugar
 pytest==7.3.1
-sphinx==6.1.3
+sphinx==7.0.0
 sphinxcontrib-asyncio==0.3.0
 twine==4.0.2
 uvloop==0.17.0