try patch because of IAM error due to using the wrong cluster version

Author: Lingling Peng

modules/sage-aws-k8s-node-autoscaler/data.tf

@@ -14,3 +14,17 @@ data "aws_secretsmanager_secret_version" "secret_credentials" {
   secret_id = data.aws_secretsmanager_secret.spotinst_token.id
 }
 
+# patch
+# Discover the cluster version (or let a var override it)
+data "aws_eks_cluster" "this" {
+  name = var.cluster_name
+}
+
+locals {
+  k8s_version = coalesce(var.cluster_version, data.aws_eks_cluster.this.version) # e.g., "1.29"
+}
+
+# Amazon Linux 2 EKS-optimized AMI via SSM (non-GPU)
+data "aws_ssm_parameter" "eks_worker_ami" {
+  name = "/aws/service/eks/optimized-ami/${local.k8s_version}/amazon-linux-2/recommended/image_id"
+}