Change test script to run with 'fail' argument

Author: DariuszPorowski

.github/workflows/merge-queue-demo.yaml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
       - name: Run Unit Test
-        run: ./scripts/test.sh
+        run: ./scripts/test.sh fail
 
   # Scenario: Job that only runs in the Merge Queue (e.g., expensive integration tests)
   merge-queue-exclusive: