title: Github API Rate Limit Exceeded when it used to work
body: <p>I'm running the following in an Azure pipeline:</p>
  
  <pre><code>GITHUB_ACCESS_TOKEN=$(token) carthage update --platform iOS
  </code></pre>
  
  <p>Up until today, passing a Personal Access Token in this way worked well to avoid the <code>API rate limit exceeded</code> message, but suddenly I'm getting this error:</p>
  
  <blockquote>
    <p>API rate limit exceeded for 199.19.85.33. (But here's the good news: Authenticated requests get a higher rate limit. Check out the documentation for more details.</p>
  </blockquote>
  
  <p>My request <em>is</em> authenticated. Has something changed regarding Github tokens and/or Carthage? I'm using Carthage 0.34.0.</p>