chore(deps): bump sphinx from 4.3.0 to 7.2.2 in /docs

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 4.3.0 to 7.2.2.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES)
- [Commits](sphinx-doc/sphinx@v4.3.0...v7.2.2)

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

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

docs/requirements.txt

@@ -3,7 +3,7 @@
 
 
 # dependencies
-sphinx==4.3.0
+sphinx==7.2.2
 jinja2==3.0.3
 git+https://github.com/jhermann/pygments-markdown-lexer.git@e651a9a3f664285b01451eb39232b1ad9af65956#egg=pygments-markdown-lexer
 pygments-apiblueprint==0.2.0