updated logic of the test-job

• updated the test stage in the app Dockerfile

k8s-manifests/deployment.yaml.tmpl

@@ -19,7 +19,7 @@ spec:
       imagePullSecrets:
       - name: 'gitlab-registry-credentials'
       containers:
-      - image: devops-app
+      - image: {{image}}
         name: todo-app-container
         ports:
         - containerPort: 3000