chore(deps): bump djangorestframework from 3.12.4 to 3.15.2

Bumps [djangorestframework](https://github.com/encode/django-rest-framework) from 3.12.4 to 3.15.2.
- [Release notes](https://github.com/encode/django-rest-framework/releases)
- [Commits](encode/django-rest-framework@3.12.4...3.15.2)

---
updated-dependencies:
- dependency-name: djangorestframework
  dependency-type: direct:production
...

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

requirements.txt

@@ -25,7 +25,7 @@ django-filter==2.4.0
 django-fontawesome-5==1.0.18
 django-getenv==1.3.2
 django-widget-tweaks==1.4.8
-djangorestframework==3.12.4
+djangorestframework==3.15.2
 drf-yasg==1.20.0
 executing==2.0.1
 fonttools==4.49.0