Merge pull request #4091 from django-oscar/dependabot/pip/django-debug-toolbar-gte-2.2-and-lt-4.1

Update django-debug-toolbar requirement from <3.6,>=2.2 to >=2.2,<4.1

requirements.txt

 
 # development
 Werkzeug>=1.0,<2.1
-django-debug-toolbar>=2.2,<3.6
+django-debug-toolbar>=2.2,<4.1
 django-extensions>=2.2,<3.3
 psycopg2-binary>=2.8,<2.10