cc not updated after initial installation

[mprojtz-private]

When changing anything in the values file after the initial installation with helm the cc will not be updated when running helm install/upgrade again. This is because of the if-statement in the template file:

helm-charts/src/main/ks-installer/templates/clusterconfiguration.yaml

Line 1 in 5129f76

{{ if (lookup "installer.kubesphere.io/v1alpha1" "ClusterConfiguration" "kubesphere-system" "ks-installer") -}}

This blocks from managing the installation using helm override file for the configuration.