Bump sphinx from 8.1.3 to 9.0.4

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 8.1.3 to 9.0.4.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/v9.0.4/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v8.1.3...v9.0.4)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-version: 9.0.4
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -61,7 +61,7 @@ tests = [
 docs = [
     "autoapi",
     "myst-parser",
-    "sphinx<8.2.0",
+    "sphinx<9.1.0",
     "sphinx-argparse",
     "sphinx-autodoc-typehints<2.4",
     "sphinx-rtd-theme",