If you need to pull a helm chart from Quay on a platform that doesn't support the Helm registry plugin, you can use:
`curl -s https://quay.io/cnr/api/v1/packages/YOURNAMESPACE/YOURAPP/APPVERSION/helm/pull | jq -r .blob | base64 -d > FILENAME.tar.gz`
YOURNAMESPACE is the quay username owning the application.
YOURAPP is the name of the application.
APPVERSION is the version of the application.
FILENAME is the name of the file that will contain the helm chart.