Bump djangorestframework from 3.11.1 to 3.11.2

Bumps [djangorestframework](https://github.com/encode/django-rest-framework) from 3.11.1 to 3.11.2.
- [Release notes](https://github.com/encode/django-rest-framework/releases)
- [Commits](encode/django-rest-framework@3.11.1...3.11.2)

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

requirements.txt

@@ -1,6 +1,6 @@
 Django==3.0.9
 psycopg2==2.8.5
-djangorestframework==3.11.1
+djangorestframework==3.11.2
 pylint==2.5.3
 pydash==4.8.0
 django-cors-headers==3.4.0