fix k8s v1.33.3 etcd image version (kubernetes#21337)

Author: prezha

pkg/minikube/constants/constants_kubeadm_images.go

@@ -20,7 +20,7 @@ var (
 	KubeadmImages = map[string]map[string]string{
 		"v1.34.0-beta.0": {
 			"coredns/coredns": "v1.12.1",
-			"etcd":            "3.5.21-0",
+			"etcd":            "3.6.1-1",
 			"pause":           "3.10",
 		},
 		"v1.33.3": {