Bump sphinx from 8.0.2 to 8.1.0 (#978)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 8.0.2 to 8.1.0.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v8.0.2...v8.1.0)

---
updated-dependencies:
- dependency-name: sphinx
  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>

pyproject.toml

@@ -70,7 +70,7 @@ tests = [
 ]
 docs = [
   "webargs[frameworks]",
-  "Sphinx==8.0.2",
+  "Sphinx==8.1.0",
   "sphinx-issues==4.1.0",
   "furo==2024.8.6",
 ]