🐛➕ dep: Add django-filter dep for tox config

tox.ini

@@ -22,6 +22,7 @@ deps =
     pytest
     pytest-cov
     pytest-django
+    django-filter
     django40: django<5.0,>=4.2
     django50: django<5.1,>=5
     django51: django<5.2,>=5.1