Remove resolveRemoteUserObjects method of remote/activitypub/resolver

The value of the value returned by resolveRemoteUserObjects method of
remote/activitypub/resolver was inconsistent.

src/processor/http/process-inbox.ts

@@ -35,5 +35,5 @@ export default async ({ data }) => {
 		throw 'signature verification failed';
 	}
 
-	await act(new Resolver(), user, data.inbox, true);
+	await Promise.all(await act(new Resolver(), user, data.inbox, true));
 };