Testing for failure testcase

Temporarily changing entrypoint to use custom test-exit-code script that tests two scenarios: workflow failure and workflow success.
I will test each scenario in a separate workflow run.

For failure test case, workflow should fail current job immediately and not proceed to subsequent jobs.

docker-compose.automated-tests.yml

@@ -18,6 +18,6 @@ services:
       - MQTT_SERVER_ADDRESS=mqtt-server
     working_dir: /ext/source/tests
     # entrypoint: "sh ./run-test.sh"
-    entrypoint: "sh ./test-exit-code.sh success"
+    entrypoint: "sh ./test-exit-code.sh failure"
     sysctls:
       - net.ipv6.conf.all.disable_ipv6=0