Merge pull request #41732 from thaJeztah/containerd_1.4.3

update containerd binary to v1.4.3 (CVE-2020-15257)
diff --git a/hack/dockerfile/install/containerd.installer b/hack/dockerfile/install/containerd.installer
index 7a82e25..b656a56 100755
--- a/hack/dockerfile/install/containerd.installer
+++ b/hack/dockerfile/install/containerd.installer
@@ -4,7 +4,7 @@
 # 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.
-: "${CONTAINERD_COMMIT:=b321d358e6eef9c82fa3f3bb8826dca3724c58c6}" # v1.4.2
+: "${CONTAINERD_COMMIT:=269548fa27e0089a8b8278fc4fc781d7f65a939b}" # v1.4.3
 
 install_containerd() (
 	echo "Install containerd version $CONTAINERD_COMMIT"