Bump sphinx from 6.0.0 to 7.0.0

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 6.0.0 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@v6.0.0...v7.0.0)

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

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

requirements-dev.txt

@@ -13,7 +13,7 @@ pytest-flake8==1.1.1
 pytest-sugar==0.9.6
 pytest-xdist==3.2.1
 selenium==4.8.3
-sphinx==6.0.0
+sphinx==7.0.0
 sphinx-autobuild==2021.3.14
 webdriver-manager==3.8.5
 xvfbwrapper==0.2.9