Fix users/list/update API (#2590)

src/server/api/endpoints/users/lists/update.ts

@@ -30,7 +30,7 @@ export const meta = {
 	}
 };
 
-export default async (params: any, user: ILocalUser) => new Promise(async (res, rej) => {
+export default (params: any, user: ILocalUser) => new Promise(async (res, rej) => {
 	const [ps, psErr] = getParams(meta, params);
 	if (psErr) throw psErr;