Test k8s kublet configured for containerd

[gothub]

From slack conversation today: https://nceas.slack.com/archives/C0N49FM9V/p1648790053765729

• schedule a time to configure and test kublet re-configured to use containerd (on dev k8s).

Determine first if kubeadm can be used to configure k8s to use containerd or if this has to be done manually.

Useful links from slack convo:

• https://kubernetes.io/blog/2022/03/31/ready-for-dockershim-removal/
• https://kubernetes.io/docs/tasks/administer-cluster/migrating-from-dockershim/change-runtime-containerd/
• https://kubernetes.io/blog/2020/12/02/dont-panic-kubernetes-and-docker/