Bump sphinx-click from 4.3.0 to 4.4.0 in /spiffworkflow-backend/docs (#309)

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](https://github.com/click-contrib/sphinx-click/compare/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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

spiffworkflow-backend/docs/requirements.txt

@@ -1,3 +1,3 @@
 furo==2022.9.29
 sphinx==5.3.0
-sphinx-click==4.3.0
+sphinx-click==4.4.0