updated an error response for the rename API on v2020-09-01 (#17850)

Co-authored-by: Ochi <[email protected]>

specification/subscription/resource-manager/Microsoft.Subscription/stable/2020-09-01/subscriptions.json

@@ -85,7 +85,7 @@
           "default": {
             "description": "Describes the error if the operation is not successful.",
             "schema": {
-              "$ref": "#/definitions/ErrorResponse"
+              "$ref": "#/definitions/ErrorResponseBody"
             }
           }
         }