Bump djangorestframework from 3.12.4 to 3.13.1

Bumps [djangorestframework](https://github.com/encode/django-rest-framework) from 3.12.4 to 3.13.1.
- [Release notes](https://github.com/encode/django-rest-framework/releases)
- [Commits](encode/django-rest-framework@3.12.4...3.13.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -12,7 +12,7 @@ django-gulp==4.1.0
 django-redis==4.12.1
 django-ftl==0.13
 django-referrer-policy==1.0
-djangorestframework==3.12.4
+djangorestframework==3.13.1
 django-waffle==2.3.0
 dockerflow==2022.1.0
 drf-yasg==1.20.0
@@ -38,7 +38,7 @@ coverage==6.3.2
 model-bakery==1.5.0
 pytest-cov==3.0.0
 pytest-django==4.5.2
-responses==0.17.0
+responses==0.21.0
 
 # linting
 black==22.3.0