move most of the generated files

django-stubs/middleware/http.pyi

@@ -0,0 +1,8 @@
+from django.core.handlers.wsgi import WSGIRequest
+from django.http.response import HttpResponseBase
+from django.utils.deprecation import MiddlewareMixin
+
+class ConditionalGetMiddleware(MiddlewareMixin):
+    get_response: None
+    def process_response(self, request: WSGIRequest, response: HttpResponseBase) -> HttpResponseBase: ...
+    def needs_etag(self, response: HttpResponseBase) -> bool: ...