[Release-1.22] etcd-snapshot subcommand does not out debug logs even when --debug flag is provided

[dereknola]

Backport #4920 to release-1.22

[rancher-max]

Validated using commitid 354477adbfbd596828a56ce9882b081629321ed8 from branch release-1.22

• Multiple debug logs are now passed when passing the --debug flag to the snapshot command. See below snippet of the command and the start of the logs which now contain DEBU for debug outputs.

~$ sudo k3s etcd-snapshot save --debug
WARN[0000] Unknown flag --write-kubeconfig-mode found in config.yaml, skipping 
WARN[0000] Unknown flag --tls-san found in config.yaml, skipping 
WARN[0000] Unknown flag --token found in config.yaml, skipping 
INFO[0000] Managed etcd cluster bootstrap already complete and initialized 
INFO[0000] Applying CRD addons.k3s.cattle.io            
DEBU[0000] DesiredSet - Patch apiextensio