Bump python-dateutil from 2.8.2 to 2.9.0.post0

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](dateutil/dateutil@2.8.2...2.9.0.post0)

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

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

requirements.txt

@@ -6,7 +6,7 @@ django-cache-machine==1.2.0
 djangorestframework==3.14.0
 django-filter==24.1
 django-extensions==3.2.3
-python-dateutil==2.8.2
+python-dateutil==2.9.0.post0
 social-auth-app-django==5.4.0
 html5lib==1.1
 cached-property==1.5.2