Publish Helm chart as OCI

[MaxRink]

Describe the solution you'd like Currently the helm charts are only distributed in legacy format. We would like to see them also getting distributed as OCI charts as some registries stared to deprecate the legacy format already Describe alternatives you've considered

Additional context https://helm.sh/docs/topics/registries/

[funilrys]

I'm also looking forward to this. This is the only reason why we keep installing it manually.