update containerd to v1.3.4

Signed-off-by: Jintao Zhang <zhangjintao9020@gmail.com>

hack/dockerfile/install/containerd.installer

@@ -3,7 +3,7 @@
 # containerd is also pinned in vendor.conf. When updating the binary
 # version you may also need to update the vendor version to pick up bug
 # fixes or new APIs.
-: "${CONTAINERD_COMMIT:=d76c121f76a5fc8a462dc64594aea72fe18e1178}" # v1.3.3
+: "${CONTAINERD_COMMIT:=814b7956fafc7a0980ea07e950f983d0837e5578}" # v1.3.4
 
 install_containerd() {
 	echo "Install containerd version $CONTAINERD_COMMIT"