Bump django-environ from 0.8.1 to 0.11.2

Bumps [django-environ](https://github.com/joke2k/django-environ) from 0.8.1 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@v0.8.1...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]>

requirements/requirements.txt

@@ -65,7 +65,7 @@ django-crispy-forms==1.14.0
     #   django-anvil-consortium-manager
 django-dbbackup==4.0.1
     # via -r requirements/requirements.in
-django-environ==0.8.1
+django-environ==0.11.2
     # via -r requirements/requirements.in
 django-extensions==3.2.3
     # via