only build the production environment when the previous steps all executed successfully

Jenkinsfile

@@ -62,6 +62,7 @@ pipeline {
     }
     stage('Build production deliverable') {
       steps {
+        when { equals expected: 'SUCCESS', actual: buildResult }
         catchError(buildResult: 'FAILURE', stageResult: 'FAILURE') {
           sh ''' #!/usr/local/bin/bash
             ZIP_FILE="url-shortener_${BRANCH_NAME}_$(date "+%Y-%m-%d_%H-%M-%S").tgz"