Correct Django version alias in tox.ini

Author: scpaes

tox.ini

@@ -40,7 +40,7 @@ deps =
     django42: Django>=4.2,<4.3
     django50: Django>=5.0,<5.1
     django51: Django>=5.1,<5.2
-    django51: Django>=5.2,<5.3
+    django52: Django>=5.2,<5.3
     django-main: Django
     django-main: git+https://github.com/pylint-dev/astroid@main
     django-main: git+https://github.com/pylint-dev/pylint@main