Updates test matrix

Author: timonweb

tox.ini

@@ -17,11 +17,10 @@ basepython = python3
 commands = pytest {posargs}
 allowlist_externals = pytest
 deps =
-    django40: Django>=4.0,<4.1
-    django41: Django>=4.1,<4.2
     django42: Django>=4.2,<5.0
     django50: Django>=5.0,<5.1
     django51: Django>=5.1,<5.2
+    django52: Django>=5.2,<5.3
 setenv =
     DJANGO_SETTINGS_MODULE = tests.settings
     PYTHONPATH = {toxinidir}