title: Yarn install in gitlab pipline
body: <p>I'm using pipline to install my packages and this is my script:</p>
  <pre><code>default:
    image: node:latest
    before_script:
      - yarn
  
  Install Dependencies:
    stage: install_deps
    script:
      - yarn
  </code></pre>
  <p>and I got this error:</p>
  <blockquote>
  <p>error An unexpected error occurred:
  &quot;https://registry.yarnpkg.com/@ant-design%2ficons: tunneling socket
  could not be established, statusCode=407&quot;.</p>
  </blockquote>
  <p>What is the problem? What am I doing wrong?</p>