Helm chart CI considers tags unstable
The CI include file for helm charts has this:
if [ "$CI_COMMIT_BRANCH" == "$CI_DEFAULT_BRANCH" ]; then export HELM_CHANNEL='stable'; else export HELM_CHANNEL='unstable'; fi
For tag pipelines, $CI_COMMIT_BRANCH
is not set, so the resulting package is published to unstable, which is not our intention.