fix: cattle-system namespace

- cattle-system namespace is created earlier than helm
- leave namespaces.yaml to manage cattle-system namespace (required
  before installing helm/rancher)

modules/rke2/manifests/helm.pp

@@ -65,7 +65,6 @@ class rke2::helm (
 
       $r_cmd = 'helm install rancher rancher-stable/rancher \
                   --namespace cattle-system \
-                  --create-namespace \
                   --set hostname=rancher.main.unkin.net \
                   --set bootstrapPassword=admin \
                   --set ingress.tls.source=secret \