Bump django-environ from 0.9.0 to 0.11.2 (#317)

Bumps [django-environ](https://github.com/joke2k/django-environ) from 0.9.0 to 0.11.2.
- [Release notes](https://github.com/joke2k/django-environ/releases)
- [Changelog](https://github.com/joke2k/django-environ/blob/main/CHANGELOG.rst)
- [Commits](joke2k/django-environ@v0.9.0...v0.11.2)

---
updated-dependencies:
- dependency-name: django-environ
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements/base.txt

@@ -9,7 +9,7 @@ celery==5.3.1  # pyup: < 6.0  # https://github.com/celery/celery
 # Django
 # ------------------------------------------------------------------------------
 django==4.2.5  # pyup: < 5.0  # https://www.djangoproject.com/
-django-environ==0.9.0  # https://github.com/joke2k/django-environ
+django-environ==0.11.2  # https://github.com/joke2k/django-environ
 django-model-utils==4.3.1  # https://github.com/jazzband/django-model-utils
 django-filter==23.2  # https://github.com/carltongibson/django-filter
 djangoql==0.17.1 # https://github.com/ivelum/djangoql