**Summary**
SSH FIDO2 Support
https://developers.yubico.com/SSH/Securing_SSH_with_FIDO2.html
**Use case**
Support FIDO2 verification for SSH authentication.
**Additional information**
Supporting SSH FIDO2 requires the following to be set on the SSH server. This option isn't currently exposed via the VyOS CLI.
PubkeyAuthOptions verify-required