Bump djangorestframework from 3.15.1 to 3.15.2 (#678)

Bumps [djangorestframework](https://github.com/encode/django-rest-framework) from 3.15.1 to 3.15.2.
- [Release notes](https://github.com/encode/django-rest-framework/releases)
- [Commits](encode/django-rest-framework@3.15.1...3.15.2)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

tests/requirements.txt

@@ -8,7 +8,7 @@ django-paypal==1.1.2
 django-mptt==0.14.0
 django-post-office==3.6.0
 django-timezone-field==7.0
-djangorestframework==3.15.1
+djangorestframework==3.15.2
 pre-commit==3.5.0 ; python_version<"3.9"
 pre-commit==3.7.1 ; python_version>="3.9"
 python-dateutil==2.8.2