dockerfile: update containerd to 2.1.5

Signed-off-by: Akihiro Suda <[email protected]>

Author: AkihiroSuda

Dockerfile

@@ -1,10 +1,10 @@
 # syntax=docker/dockerfile-upstream:master
 
 ARG RUNC_VERSION=v1.3.3
-ARG CONTAINERD_VERSION=v2.1.4
+ARG CONTAINERD_VERSION=v2.1.5
 # CONTAINERD_ALT_VERSION_... defines fallback containerd version for integration tests
-ARG CONTAINERD_ALT_VERSION_20=v2.0.6
-ARG CONTAINERD_ALT_VERSION_17=v1.7.28
+ARG CONTAINERD_ALT_VERSION_20=v2.0.7
+ARG CONTAINERD_ALT_VERSION_17=v1.7.29
 ARG REGISTRY_VERSION=v2.8.3
 ARG ROOTLESSKIT_VERSION=v2.3.5
 ARG CNI_VERSION=v1.8.0