chore: add new cab version 6.0

Author: Antoliny0919

djangosnippets/settings/base.py

@@ -152,6 +152,7 @@ def user_url(user):
 COMMENTS_APP = "cab"
 
 CAB_VERSIONS = (
+    ("6.0", "6.0"),
     ("5.2", "5.2"),
     ("5.1", "5.1"),
     ("5.0", "5.0"),