Change execution of get helm script.

helm.xml

@@ -9,9 +9,7 @@
         <script>
             <source>
             <![CDATA[
-            curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
+            curl -fsSL https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | sh -
-            chmod 700 get_helm.sh
-            ./get_helm.sh
             /var/lib/rancher/rke2/bin/kubectl apply --kubeconfig /etc/rancher/rke2/rke2.yaml -f https://github.com/cert-manager/cert-manager/releases/download/v1.18.2/cert-manager.crds.yaml
             helm --kubeconfig /etc/rancher/rke2/rke2.yaml repo add jetstack https://charts.jetstack.io
             helm --kubeconfig /etc/rancher/rke2/rke2.yaml repo update