Provide charts through OCI registry

[jonesbusy]

Provide OCI chart in addition of classical registry

The easiest is to use GItHub package (ghcr.io) to publish OCI chart packages when they are released

Similar works as been done on many chart repositories (grafana/helm-charts#2395, https://github.com/jenkinsci/helm-charts/pull/1196/files, etc...)

Can we update the release workflow to also publish OCI helm charts ?

I volonteer to also open a PR

[github-actions]

This issue has been marked as stale because it has been open for 30 days with no activity. It will be automatically closed in 10 days if no further activity occurs.

[jonesbusy]

not stale