Persistent user callouts now support deferred links, which are links
that can be used to dismiss the callout, and then proceed to follow
the link's original location.
This ensures that the callout dismissal is properly recorded
before the user leaves the page.
Show a dismissable callout on a users dashboard for a free trial of
the GitLab.com Gold plan. Hide the callout from users who have
dismissed the callout, are already on a trial or are already on the
gold plan