Reloader has been running since 23 September and is what makes the
reloader.stakater.com/auto annotation on a pod template do anything, but the
repository only held a namespace. It was a release someone installed by hand,
so it was invisible to review, invisible to Renovate, and one reinstall away from
being silently dropped.
Declaring it in HELM_RELEASES pins the chart version somewhere Renovate can
update it, and the active marker means the namespace is applied before the
upgrade instead of only existing as a side effect of the original install.
The values file sets nothing the running release does not already do, apart from
resource requests and limits, which the chart leaves empty.