Bump sphinx from 8.2.3 to 9.0.4 (#2380)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 8.2.3 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@v8.2.3...v9.0.4)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

poetry.lock

@@ -79,7 +79,7 @@ covdefaults = "^2.3"
 optional = true
 
 [tool.poetry.group.docs.dependencies]
-sphinx = "^8.1"
+sphinx = ">=8.1,<10.0"
 sphinx-autodoc-typehints = ">=2.3,<4.0"
 sphinxcontrib-mermaid = ">=1,<3"
 furo = ">=2024.5,<2026.0"