Bump django-extensions from 2.1.9 to 2.2.1

Bumps [django-extensions](https://github.com/django-extensions/django-extensions) from 2.1.9 to 2.2.1.
- [Release notes](https://github.com/django-extensions/django-extensions/releases)
- [Changelog](https://github.com/django-extensions/django-extensions/blob/master/CHANGELOG.md)
- [Commits](django-extensions/django-extensions@2.1.9...2.2.1)

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

requirements.txt

@@ -11,7 +11,7 @@ django-choices==1.7.0
 django-dotenv==1.4.2
 django-downloadview==1.9
 # django-encrypted-model-fields==0.5.8  # => https://pypi.org/project/django-encrypted-model-fields/#history
-django-extensions==2.1.9
+django-extensions==2.2.1
 django-getenv==1.3.2
 django-ipware==2.1.0
 django-ses==0.8.10