test: add delay after login in testPush to fix CI

Author: jescalada

test/testPush.test.ts

@@ -66,6 +66,8 @@ describe('Push API', () => {
     const res = await request(app).post('/api/auth/login').send({ username, password });
     expect(res.status).toBe(200);
     setCookie(res);
+    // Small delay to make sure session is set on CI execution
+    await new Promise((resolve) => setTimeout(resolve, 1000));
   };
 
   const loginAsApprover = () => login(TEST_USERNAME_1, TEST_PASSWORD_1);