Revert v - it's needed there but not elsewhere

Author: eaudetcobello

templates/cluster-template-aws.yaml

@@ -47,7 +47,7 @@ spec:
       kind: AWSMachineTemplate
       name: "${CLUSTER_NAME}-control-plane"
   replicas: ${CONTROL_PLANE_MACHINE_COUNT:=1}
-  version: "${KUBERNETES_VERSION}"
+  version: "v${KUBERNETES_VERSION}"
   upgradeStrategy: "${UPGRADE_STRATEGY}"
 ---
 apiVersion: infrastructure.cluster.x-k8s.io/v1beta2