title: use yq version4 to update yaml file
body: <p>im having the following code which works on yq 3 and when I try to upgrade to yq4 it fails</p>
  <p>this works on yq3
  <code>yq w -i dep.yaml 'spec.spec.image' $(MY_VAL)</code></p>
  <p>on yq4 I got error that it doenst know <code>w</code>how can I make it works
  I didn't find any match example which can help to my case</p>
  <p><a href="https://mikefarah.gitbook.io/yq/upgrading-from-v3" rel="nofollow noreferrer">https://mikefarah.gitbook.io/yq/upgrading-from-v3</a></p>