[CI] Trigger publishing of the demo image

Change-Id: I524ffcfc4be949aeab590270bad900b16bb64752

java-spring-boot-demo/src/main/java/com/example/demo/DemoController.java

@@ -7,8 +7,8 @@ import org.springframework.web.bind.annotation.RestController;
 public class DemoController {
 
     @RequestMapping("/")
-    public Object root() {
-        return null;
+    public String root() {
+        return "test";
     }
 
 }

zuul.d/jobs.yaml

@@ -15,6 +15,9 @@
         - context: java-spring-boot-demo
           registry: quay.io
           repository: quay.io/nebulous/iot-dpp-orchestrator-java-spring-boot-demo
+          namespace: nebulous
+          repo_shortname: iot-dpp-orchestrator-java-spring-boot-demo
+          repo_description: ""
 
 - job:
     name: nebulous-iot-dpp-orchestrator-upload-container-images