Bump the python-packages group with 4 updates

Bumps the python-packages group with 4 updates: [alembic](https://github.com/sqlalchemy/alembic), [python-keycloak](https://github.com/marcospereirampj/python-keycloak), [coverage](https://github.com/coveragepy/coveragepy) and [sphinx](https://github.com/sphinx-doc/sphinx).


Updates `alembic` from 1.18.1 to 1.18.2
- [Release notes](https://github.com/sqlalchemy/alembic/releases)
- [Changelog](https://github.com/sqlalchemy/alembic/blob/main/CHANGES)
- [Commits](https://github.com/sqlalchemy/alembic/commits)

Updates `python-keycloak` from 7.0.2 to 7.0.3
- [Changelog](https://github.com/marcospereirampj/python-keycloak/blob/master/CHANGELOG.md)
- [Commits](marcospereirampj/python-keycloak@v7.0.2...v7.0.3)

Updates `coverage` from 7.13.1 to 7.13.2
- [Release notes](https://github.com/coveragepy/coveragepy/releases)
- [Changelog](https://github.com/coveragepy/coveragepy/blob/main/CHANGES.rst)
- [Commits](coveragepy/coveragepy@7.13.1...7.13.2)

Updates `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: alembic
  dependency-version: 1.18.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: python-keycloak
  dependency-version: 7.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: coverage
  dependency-version: 7.13.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: sphinx
  dependency-version: 9.0.4
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: python-packages
...

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

Author: dependabot[bot]

pyproject.toml

@@ -115,7 +115,7 @@ docs = [
   "setuptools-git-versioning>=2.1,<3.1",
   "autodoc-pydantic~=2.2.0",
   "numpydoc~=1.10.0",
-  "sphinx~=8.2.3",
+  "sphinx>=8.2.3,<9.1.0",
   "furo~=2025.12.19",
   "sphinx-copybutton~=0.5.2",
   "sphinxcontrib-towncrier~=0.5.0a0",