docs: Improve karpenter example to use service account for helm relea… (#3066)

* docs: Improve karpenter example to use service account for helm release name

* docs: Improve karpenter example to use service account for helm release name

* docs: Improve karpenter example to use service account for helm release name

examples/karpenter/main.tf

@@ -151,6 +151,8 @@ resource "helm_release" "karpenter" {
 
   values = [
     <<-EOT
+    serviceAccount:
+      name: ${module.karpenter.service_account}
     settings:
       clusterName: ${module.eks.cluster_name}
       clusterEndpoint: ${module.eks.cluster_endpoint}