add stage for test rollout

Jenkinsfile

@@ -157,6 +157,23 @@ pipeline {
                 }
             }
         }
+        
+        stage('Trigger Test rollout') {
+            when {
+                branch 'release'
+            }
+            steps {
+                script {
+                    FAILED_STAGE = env.STAGE_NAME
+
+                    cloneGitopsRepo()
+
+                    setNewTestAdministrationVersion()
+
+                    pushTestGitopsRepo()
+                }
+            }
+        }
     }
     
     post {