Bump django-debug-toolbar from 5.2.0 to 6.0.0 in /requirements

Bumps [django-debug-toolbar](https://github.com/django-commons/django-debug-toolbar) from 5.2.0 to 6.0.0.
- [Release notes](https://github.com/django-commons/django-debug-toolbar/releases)
- [Changelog](https://github.com/django-commons/django-debug-toolbar/blob/main/docs/changes.rst)
- [Commits](django-commons/django-debug-toolbar@5.2.0...6.0.0)

---
updated-dependencies:
- dependency-name: django-debug-toolbar
  dependency-version: 6.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements/dev.txt

@@ -4,7 +4,7 @@ pytest-django==4.11.1
 prospector==1.11.0
 factory_boy==3.3.3
 Faker==37.4.2
-django-debug-toolbar==5.2.0
+django-debug-toolbar==6.0.0
 pylint<3
 black==25.1.0
 pre-commit==4.2.0