Bump djangorestframework from 3.15.1 to 3.15.2 in /Watcher

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
...

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

Watcher/requirements.txt

@@ -1,7 +1,7 @@
 mysqlclient==2.1.1
 django==5.0.7
 django-mysql==4.13.0
-djangorestframework==3.15.1
+djangorestframework==3.15.2
 django-rest-knox==4.2.0
 apscheduler==3.10.4
 nltk==3.8.1