ci: reduce timeout after idempotency tests (#8227)

spec/Idempotency.spec.js

@@ -45,6 +45,10 @@ describe('Idempotency', () => {
     });
   });
 
+  afterAll(() => {
+    jasmine.DEFAULT_TIMEOUT_INTERVAL = process.env.PARSE_SERVER_TEST_TIMEOUT || 10000;
+  });
+
   // Tests
   it('should enforce idempotency for cloud code function', async () => {
     let counter = 0;