Fix helm release registry

Author: aleksanderaleksic

.github/workflows/release.yaml

@@ -134,4 +134,4 @@ jobs:
     - name: Package and push Helm chart to OCI registry
       run: |
         helm package chart --version ${{ steps.version.outputs.version }} --app-version ${{ steps.version.outputs.version }}
-        helm push flux-extension-controller-${{ steps.version.outputs.version }}.tgz oci://${{ steps.image_name.outputs.name }}/charts
+        helm push flux-extension-controller-${{ steps.version.outputs.version }}.tgz oci://${{ env.REGISTRY }}/${{ steps.image_name.outputs.name }}/charts