Bump the documentation-dependencies group with 1 update (#10)

Updates the requirements on [sphinx](https://github.com/sphinx-doc/sphinx) to permit the latest version.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v6.2.1...v7.1.2)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-type: direct:development
  dependency-group: documentation-dependencies
...

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

pyproject.toml

@@ -26,6 +26,6 @@ requests = "^2.31.0"
 aiohttp = {extras = ["speedups"], version = "^3.8.4"}
 
 [tool.poetry.group.docs.dependencies]
-sphinx = "6.2.1"
+sphinx = "7.1.2"
 sphinx-copybutton = "0.5.2"
 sphinx-rtd-theme = "1.3.0"