update containerd binary v1.4.8

Update to containerd 1.4.8 to address [CVE-2021-32760][1].

[1]: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32760

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit cf1328cd46987b07285fdb9f60b1b7da631f672d)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

hack/dockerfile/install/containerd.installer

@@ -4,7 +4,7 @@ set -e
 # 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.
-: "${CONTAINERD_COMMIT:=0e8719f54c6dc6571fc1170da75a85e86c17636b}" # v1.5.3
+: "${CONTAINERD_COMMIT:=69107e47a62e1d690afa2b9b1d43f8ece3ff4483}" # v1.5.4
 
 install_containerd() (
 	echo "Install containerd version $CONTAINERD_COMMIT"