chore(deps): bump python-dateutil in /hack/api-docs (#3227)

Bumps [python-dateutil](https://github.com/dateutil/dateutil) from 2.8.2 to 2.9.0.post0.
- [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.post0)

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

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

hack/api-docs/requirements.txt

@@ -28,7 +28,7 @@ pep562==1.1
 platformdirs==4.2.0
 Pygments==2.17.2
 pymdown-extensions==10.7
-python-dateutil==2.8.2
+python-dateutil==2.9.0.post0
 PyYAML==6.0.1
 pyyaml_env_tag==0.1
 regex==2023.12.25