Bump the documentation-dependencies group with 2 updates

Updates the requirements on [sphinx](https://github.com/sphinx-doc/sphinx) and [sphinx-autoapi](https://github.com/readthedocs/sphinx-autoapi) to permit the latest version.

Updates `sphinx` to 7.4.7
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/v7.4.7/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v7.1.2...v7.4.7)

Updates `sphinx-autoapi` to 3.2.1
- [Release notes](https://github.com/readthedocs/sphinx-autoapi/releases)
- [Changelog](https://github.com/readthedocs/sphinx-autoapi/blob/main/CHANGELOG.rst)
- [Commits](readthedocs/sphinx-autoapi@v3.1.2...v3.2.1)

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

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

pyproject.toml

@@ -56,7 +56,7 @@ coverage = "*"
 optional = true
 
 [tool.poetry.group.docs.dependencies]
-sphinx = "7.1.2"
-sphinx-autoapi = "3.1.2"
+sphinx = "7.4.7"
+sphinx-autoapi = "3.2.1"
 sphinx-copybutton = "0.5.2"
 sphinx-rtd-theme = "2.0.0"