chore: disable flaky test in express_test.ts

Author: pavelgj

js/plugins/express/tests/express_test.ts

@@ -282,7 +282,8 @@ describe('expressHandler', async () => {
       });
     });
 
-    it('should abort a flow with auth', async () => {
+    // TODO: This test is flaky, skipping until fixed.
+    it.skip('should abort a flow with auth', async () => {
       const controller = new AbortController();
       const response = fetch(`http://localhost:${port}/abortableFlow`, {
         method: 'POST',