add django 4.1 to the test matrix

Author: ghazi-git

tox.ini

@@ -7,7 +7,7 @@
 isolated_build = True
 envlist =
     py{38,39,310}-dj32-drf{312,313}
-    py{38,39,310}-dj40-drf313
+    py{38,39,310}-dj{40,41}-drf313
     lint
     docs
 
@@ -25,6 +25,7 @@ deps =
     django-filter
     dj32: Django>=3.2,<4.0
     dj40: Django>=4.0,<4.1
+    dj41: Django>=4.1,<4.2
     drf312: djangorestframework>=3.12,<3.13
     drf313: djangorestframework>=3.13,<3.14
 commands =