title: does /github/home persist between github actions?
body: <p>So far, I was under the impression as per the <a href="https://developer.github.com/actions/creating-github-actions/accessing-the-runtime-environment/#filesystem" rel="noreferrer">file system</a> docs that (only?) <code>/github/workspace</code> persists across actions (not workflows):</p>
  
  <blockquote>
    <p>The working directory of the Docker container. 
    GitHub Actions execute in this directory. 
    The path to this directory is set in the <code>GITHUB_WORKSPACE</code> environment variable.</p>
  </blockquote>
  
  <p>(...)</p>
  
  <blockquote>
    <p>An action can modify the contents of this directory, which
    subsequent actions can access. </p>
  </blockquote>
  
  <p>But <strong>I now have a <a href="https://github.com/maxheld83/persistent-home" rel="noreferrer">reprex</a> (live repo with action runs) showing that <code>/github/home</code> also appears to persist across actions.</strong></p>
  
  <p>Of course I understand that none of these persist across workflows, or runs. Just between actions.</p>
  
  <p>The documentation (to me) is a bit unclear about this, and I haven't gotten an answer from support.</p>
  
  <p>Log from first action on <code>/github/home</code>:</p>
  
  <pre><code>Running 'touch /github/home/foo'...
  Successfully ran 'touch /github/home/foo'
  </code></pre>
  
  <p>Log from second action on <code>/github/home</code>:</p>
  
  <pre><code>Running 'ls /github/home'...
  foo
  Successfully ran 'ls /github/home'
  Running 'rm /github/home/foo'...
  Successfully ran 'rm /github/home/foo'
  </code></pre>
  
  <p>That seems to suggest that indeed, <code>/github/home</code> also persists, but I'd like to know for sure.</p>