Bump django from 5.2.1 to 5.2.9

Bumps [django](https://github.com/django/django) from 5.2.1 to 5.2.9.
- [Commits](django/django@5.2.1...5.2.9)

---
updated-dependencies:
- dependency-name: django
  dependency-version: 5.2.9
  dependency-type: direct:development
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -1,6 +1,6 @@
 coverage==5.5
 twine==3.4.2
-Django==5.2.1
+Django==5.2.9
 django-jinja==2.10.2
 unittest2==1.1.0
 wheel==0.38.1