test: raise the timeout of the OAuth client suite

The suite re-imports GoogleAPIService after vi.resetModules() in every test;
under the parallel full run the first import exceeded 5 s and failed
(passes alone in about 1 s).

src/tests/unit/google-api-timeout.test.ts

@@ -89,7 +89,9 @@ describe('GoogleAPIService Timeout', () => {
   });
 });
 
-describe('GoogleAPIService OAuth clients', () => {
+// Each test resets the module registry and re-imports GoogleAPIService, which can exceed the default
+// 5s timeout while the whole suite runs in parallel.
+describe('GoogleAPIService OAuth clients', { timeout: 30_000 }, () => {
   const originalOauthClientsEnv = process.env.ANTIGRAVITY_OAUTH_CLIENTS;
   const originalActiveOauthClientEnv = process.env.ANTIGRAVITY_OAUTH_CLIENT_KEY;