Update types-python-dateutil requirement

Updates the requirements on [types-python-dateutil](https://github.com/python/typeshed) to permit the latest version.
- [Commits](https://github.com/python/typeshed/commits)

---
updated-dependencies:
- dependency-name: types-python-dateutil
  dependency-version: 2.9.0.20241206
  dependency-type: direct:production
...

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

Author: dependabot[bot]

test-requirements.txt

@@ -2,5 +2,5 @@ pytest-cov >= 5.0.0
 pytest >= 8.3.5
 tox >= 4.25.0
 flake8 >= 5.0.4
-types-python-dateutil >= 2.8.19.14
+types-python-dateutil >= 2.9.0.20241206
 mypy >= 1.14.1