title: Gitlab CI - gitlab-runner run as root
body: <p>I new on continous integration on iOS,
  I try to run build with gitlab-runner and use shell as executor but I got issue that <code>pod cannot run as root</code> I am sure that I am not installing cocoapods with sudo and I try run <code>whoami</code> at <code>before_script</code> and that's right my runner run as root
  <a href="https://i.stack.imgur.com/s2FQF.png" rel="noreferrer"><img src="https://i.stack.imgur.com/s2FQF.png" alt="enter image description here"></a></p>
  
  <p>any one got same issue ?and how to fix it ?</p>