test(lotus): satisfy oxlint require-await in the LocalTransport refusal test

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA

src/state/CallViewModel/localMember/LocalTransport.test.ts

@@ -132,10 +132,8 @@ describe("LocalTransport", () => {
       livekit: { livekit_service_url: "https://lk.example.org" },
     });
     const refused = new SFUTokenRefusedError("This voice channel is full.");
-    vi.spyOn(openIDSFU, "getSFUConfigWithOpenID").mockImplementation(
-      async () => {
-        throw refused;
-      },
+    vi.spyOn(openIDSFU, "getSFUConfigWithOpenID").mockImplementation(() =>
+      Promise.reject(refused),
     );
     const errors: Error[] = [];
     const { active$ } = createLocalTransport$({