title: Convert list of JSON Object to single list on Mule DataWeave
body: <p><strong>Input:-</strong></p>
  
  <pre><code>[
    {
      "appName": "helloworld-1"
    },
    {
      "appName": "helloworld-2"
    }
  ]
  </code></pre>
  
  <p><strong>Expected Output</strong></p>
  
  <pre><code>{
  "appList": [ "helloworld-1" , "helloworld-2" ]
  }
  </code></pre>
  
  <p>Can anyone guide me for data weave script for this ?</p>