Revert main.py and remove reproduction script as requested

Author: 01xnikhil

mypy_django_plugin/main.py

@@ -4,7 +4,7 @@
 import itertools
 import sys
 from functools import cached_property, partial
-from typing import TYPE_CHECKING, Any, cast
+from typing import TYPE_CHECKING, Any
 
 from mypy.build import PRI_MED, PRI_MYPY
 from mypy.modulefinder import mypy_path
@@ -326,18 +326,21 @@ def get_dynamic_class_hook(self, fullname: str) -> Callable[[DynamicClassDefCont
             if info and info.has_base(fullnames.BASE_MANAGER_CLASS_FULLNAME):
                 return create_new_manager_class_from_from_queryset_method
         return None
+
     @override
     def report_config_data(self, ctx: ReportConfigContext) -> dict[str, Any]:
-        extra_data: dict[str, Any] = {
-        "AUTH_USER_MODEL": self.django_context.settings.AUTH_USER_MODEL,
-        "django_version": importlib.metadata.version("django"),
-        "django_stubs_version": "5.1.0",
-    }
+        # Cache would be cleared if any settings do change.
+        extra_data = {
+            "AUTH_USER_MODEL": self.django_context.settings.AUTH_USER_MODEL,
+            "django_version": importlib.metadata.version("django"),
+            "django_stubs_version": importlib.metadata.version("django-stubs"),
+        }
         try:
-            extra_data["django_stubs_ext_version"] = "5.1.0"
-        except Exception:
+            extra_data["django_stubs_ext_version"] = importlib.metadata.version("django-stubs-ext")
+        except importlib.metadata.PackageNotFoundError:
             pass
-            
         return self.plugin_config.to_json(extra_data)
+
+
 def plugin(version: str) -> type[NewSemanalDjangoPlugin]:
-    return NewSemanalDjangoPlugin
+    return NewSemanalDjangoPlugin