Bump sphinx from 7.3.2 to 7.3.6

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.3.2 to 7.3.6.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v7.3.2...v7.3.6)

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

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

pyproject.toml

@@ -70,7 +70,7 @@ tests = [
 ]
 docs = [
   "webargs[frameworks]",
-  "Sphinx==7.3.2",
+  "Sphinx==7.3.6",
   "sphinx-issues==4.1.0",
   "furo==2024.1.29",
 ]