chore(deps-dev): bump sphinx from 8.2.3 to 9.1.0

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 8.2.3 to 9.1.0.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v8.2.3...v9.1.0)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-version: 9.1.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -71,7 +71,7 @@ dev = [
     "line-profiler==5.0.2",
     "Pympler==1.1",
     # Documentation
-    "sphinx==8.2.3",
+    "sphinx==9.1.0",
     "sphinx-rtd-theme==3.0.2",
     "sphinx-autodoc-typehints==3.1.0",
     "myst-parser==4.0.1",