Bump sphinx-click from 4.3.0 to 4.4.0 in /docs

Bumps [sphinx-click](https://github.com/click-contrib/sphinx-click) from 4.3.0 to 4.4.0.
- [Release notes](https://github.com/click-contrib/sphinx-click/releases)
- [Commits](click-contrib/sphinx-click@4.3.0...4.4.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

docs/requirements.txt

@@ -1,5 +1,5 @@
 sphinx==5.3.0
-sphinx-click==4.3.0
+sphinx-click==4.4.0
 sphinx-rtd-theme==1.1.1
 click==8.1.3
 tabulate==0.9.0