Merge pull request moby#3886 from thaJeztah/update_runc_containerd_binaries

Dockerfile: update runc v1.1.7, containerd v1.6.21, v1.7.1

Author: tonistiigi

Dockerfile

@@ -1,9 +1,9 @@
 # syntax=docker/dockerfile-upstream:master
 
-ARG RUNC_VERSION=v1.1.6
-ARG CONTAINERD_VERSION=v1.7.0
+ARG RUNC_VERSION=v1.1.7
+ARG CONTAINERD_VERSION=v1.7.1
 # containerd v1.6 for integration tests
-ARG CONTAINERD_ALT_VERSION_16=v1.6.20
+ARG CONTAINERD_ALT_VERSION_16=v1.6.21
 ARG REGISTRY_VERSION=2.8.0
 ARG ROOTLESSKIT_VERSION=v1.0.1
 ARG CNI_VERSION=v1.2.0