title: Azure DevOps task to kick off another release pipeline?
body: <p>In our Azure DevOps deployment we have one "master" release pipeline that generates and runs "child" pipelines. The child pipelines are never run directly. </p>
  
  <p>Currently we kick off the child pipelines using a Powershell script in the master pipeline, but I was wondering if there is a built in task that can do this automatically? I've taken a look at the task list, but nothing jumps out. It's fine if there isn't one, but wanted to ask in case I missed something.</p>