Bump djangorestframework from 3.14.0 to 3.15.1

Bumps [djangorestframework](https://github.com/encode/django-rest-framework) from 3.14.0 to 3.15.1.
- [Release notes](https://github.com/encode/django-rest-framework/releases)
- [Commits](encode/django-rest-framework@3.14.0...3.15.1)

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

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

requirements.txt

@@ -3,7 +3,7 @@ django==5.0.3
 django-bulk-update==2.2.0
 django-redis-cache==3.0.1
 django-cache-machine==1.2.0
-djangorestframework==3.14.0
+djangorestframework==3.15.1
 django-filter==24.2
 django-extensions==3.2.3
 python-dateutil==2.9.0.post0