chore(deps): bump python-dateutil from 2.8.2 to 2.9.0 in /docs/_build

Bumps [python-dateutil](https://github.com/dateutil/dateutil) from 2.8.2 to 2.9.0.
- [Release notes](https://github.com/dateutil/dateutil/releases)
- [Changelog](https://github.com/dateutil/dateutil/blob/master/NEWS)
- [Commits](https://github.com/dateutil/dateutil/compare/2.8.2...2.9.0)

---
updated-dependencies:
- dependency-name: python-dateutil
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

docs/_build/requirements.txt

@@ -14,7 +14,7 @@ packaging==23.2
 Pygments==2.17.2
 pymdown-extensions==10.7
 pyparsing==3.1.1
-python-dateutil==2.8.2
+python-dateutil==2.9.0
 PyYAML==6.0.1
 pyyaml_env_tag==0.1
 six==1.16.0