Kubelet fails to start after cert renewal

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Cluster information:

Kubernetes version: 1.20
Cloud being used: (put bare-metal if not on a public cloud)
Installation method: Running on VMware in local datacenter
Host OS: CentOS Linux 8
CNI and version: Running containerd 1.4.3
CRI and version:

Certs recently expired. I ran through documented process of updating certs and now kubelet fails as well. I looked at documentation about updating kubelet cert manually and command does not work…

kubeadm kubeconfig user
unknown command “kubeconfig” for “kubeadm”

Currently whole cluster is down because of this issue.