title: How to force to exit in Github Actions step
body: <p>I want to exit a job if a specific condition is met:</p>
  <pre class="lang-yaml prettyprint-override"><code>jobs:
    foo:
      steps:
        ...
        - name: Early exit
          run: exit_with_success # I want to know what command I should write here
          if: true
        - run: foo
        - run: ...
   ...
  </code></pre>
  <p>How can I do this?</p>