title: Why doesn't my github action trigger on a regex tag
body: <p>For my first attempt at Github Actions I need to trigger based on a git tag such as <code>1.2.3-RELEASE</code>, which seems like a common enough thing. I can find examples like this:</p>
  <pre><code>on:
    push:
      tags:        
        - v1             # Push events to v1 tag
        - v1.*           # Push events to v1.0, v1.1, and v1.9 tags
  </code></pre>
  <p>so I created my yaml file like this:</p>
  <pre><code>on:
    push:
      tags: 
        - '[1-9]+.[0-9]+.[0-9]+\-RELEASE'
  
  </code></pre>
  <p>But it never fires. I verified the regex expression with an online tool and I tried a tag <code>v1.1</code> with it set up with the first example, and that worked with or without quotes. My expression needs quotes, which is fine, but it doesn't work. Anyone know what I'm doing wrong here?</p>