[FR] Allow to define containerd.sock path

[bkupidura]

Currently containerd.sock path is hardcoded (/run/containerd/containerd.sock).

This will cause image cleanup Job to faild everytime on environments with different path (e.g. k3s).

containerd.sock is located in /run/k3s/containerd/containerd.sock for k3s, probably other locations are also possible with different k8s distributions.