fix(deps): bump django from 5.1.5 to 5.1.6

Bumps [django](https://github.com/django/django) from 5.1.5 to 5.1.6.
- [Commits](https://github.com/django/django/compare/5.1.5...5.1.6)

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

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

requirements.txt

@@ -1,5 +1,5 @@
 asgiref==3.8.1
-Django==5.1.5
+Django==5.1.6
 django-jazzmin==3.0.1
 pytz==2025.1
 setuptools==75.8.0