title: How to resolve "No hosted parallelism has been purchased or granted" in free tier?
body: <p>I've just started with Azure DevOps pipelines and just created a very simple pipeline with a Maven task. For now I don't care for parallelism and I'm not sure in which way I've added it to my pipeline. Is there any way to use the Maven task on the free tier without parallelism?</p>
  <p>This is my pipeline:</p>
  <pre><code> trigger:
   - master
      
   pool:
     vmImage: ubuntu-latest
      
   steps:
   - task: Maven@3
  </code></pre>
  <p>My thought was that tasks are always parallel? Other than that I cannot see where's the parallel step.</p>