Since most of the charts in both openstack-helm and
this repo use helm-toolkit, changes in helm-toolkit
have the possibility of impacting charts in the
openstack-helm repo and will not be caught in testing
here.
This change adds a conditional linter to lint the
charts in the openstack-helm repo if any changes
to helm-toolkit are made.
Change-Id: I0f6a935eca53d966c01e0902e546ea132a636a9d