fix response type of i/registry/get endpoint

packages/backend/src/server/api/endpoints/i/registry/get.ts

@@ -20,9 +20,7 @@ export const meta = {
 		},
 	},
 
-	res: {
-		type: 'object',
-	},
+	res: {},
 
 	// 10 calls per 5 seconds
 	limit: {

packages/misskey-js/src/autogen/types.ts

@@ -24267,7 +24267,7 @@ export type operations = {
       /** @description OK (with results) */
       200: {
         content: {
-          'application/json': Record<string, never>;
+          'application/json': unknown;
         };
       };
       /** @description Client error */