kubeadm: bump supported etcd version

Author: SataQiu

cmd/kubeadm/app/constants/constants.go

@@ -495,10 +495,10 @@ var (
 
 	// SupportedEtcdVersion lists officially supported etcd versions with corresponding Kubernetes releases
 	SupportedEtcdVersion = map[uint8]string{
-		29: "3.5.16-0",
 		30: "3.5.16-0",
 		31: "3.5.16-0",
 		32: "3.5.16-0",
+		33: "3.5.16-0",
 	}
 
 	// KubeadmCertsClusterRoleName sets the name for the ClusterRole that allows