title: Always get the latest version of a gem
body: <p>The Gemfile in ruby is great for grabbing gems and making sure you have the correct version, but what if there is a gem where having the latest version might be what you want?</p>
  
  <p>The consideration here is that I've added Brakeman to my CI server. Its version has been locked by the Gemfile.lock. What I'm wondering is, how do I write:</p>
  
  <pre><code>gem 'brakeman', 'latest-version', require: false, group: [:development, :test]
  </code></pre>
  
  <p>To ensure that the CI server does a scan that will always include the latest security issues?</p>