chore(deps): bump djangorestframework from 3.14.0 to 3.15.2

Bumps [djangorestframework](https://github.com/encode/django-rest-framework) from 3.14.0 to 3.15.2.
- [Release notes](https://github.com/encode/django-rest-framework/releases)
- [Commits](encode/django-rest-framework@3.14.0...3.15.2)

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

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

requirements.txt

@@ -22,7 +22,7 @@ django-filter == 24.3
 django-ordered-model ~= 3.7.4
 
 # Django REST Framework
-djangorestframework == 3.14.0
+djangorestframework == 3.15.2
 django-cors-headers
 dj-rest-auth == 6.0.0
 drf-yasg == 1.21.7