Bump sphinx from 5.3.0 to 7.1.2 (#120)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 5.3.0 to 7.1.2.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v5.3.0...v7.1.2)

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

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

Author: dependabot[bot]

poetry.lock

@@ -126,7 +126,7 @@ optional = true
 
 [tool.poetry.group.docs.dependencies]
 sphinx_celery = ">=2.0.0"
-Sphinx = "==5.3.0"
+Sphinx = "==7.1.2"
 sphinx-testing = "~1.0.1"
 sphinx-click = "==4.4.0"