Add support for publishing to Github Container Registry OCI registry

.github/workflows/helm_release.yaml

@@ -1,12 +1,16 @@
 name: Release Charts
-
+env:
+  HELM_VERSION_TO_INSTALL: 3.14.0
+  GCR_IMAGE: ghcr.io/${{ github.repository_owner }}
+
 on:
   workflow_dispatch:
 
 jobs:
   release:
     permissions:
       contents: write
+      packages: write
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -33,3 +37,16 @@ jobs:
           cr package
           cr upload --owner="$owner" --git-repo "$repo" --token="$CR_TOKEN" --release-name-template="v{{ .Version }}" --packages-with-index --push --skip-existing --generate-release-notes --commit main
           cr index --owner="$owner" --git-repo "$repo" --token="$CR_TOKEN" --release-name-template="v{{ .Version }}" --packages-with-index --push --index-path="."
+
+      - name: install helm
+        uses: Azure/[email protected]
+        with:
+          # Version of helm
+          version: ${{ env.HELM_VERSION_TO_INSTALL }} # default is latest
+
+      - name: publish to oci registry
+        run: |
+          echo ${{ secrets.GITHUB_TOKEN }} | helm registry login ghcr.io --username ${{ github.repository_owner }} --password-stdin
+          helm package ${{ github.workspace }}/
+          package=`ls -t docker-registry-*.tgz | head -n 1`
+          helm push "${package}" oci://${{ env.GCR_IMAGE }}