Adding below answer from Nathan from Release Engineering to how to set-up the GHCR.io as a repo for helm charts :)

Hi Freddy,

I apologize for the delay in getting back to you with the needed examples. Please see the hashgraph/solo-charts repository for an example of using ghcr.io to publish your charts.

I have included links below to the relevant files. This repository showcases using semantic-release + helm + ghcr.io; however, the commands in the .releaserc file can be moved directly to the CI workflow in the event you are not using semantic-release.

CI Workflow: https://github.com/hashgraph/solo-charts/blob/main/.github/workflows/flow-deploy-release-artifact.yaml
Semantic Release Configuration: https://github.com/hashgraph/solo-charts/blob/main/.releaserc

Sincerely,

Release Engineering