This thing i broken for now

[fasmide]

So, the x/crypto/ssh package, for now, is unable to marshal the OpenSSH openssh-key-v1 format, but this is properly going to change in the near future if/when golang/go#37132 is merged

Working around this issue, hostkeys uses sshkeys, which in turn needs some patches applied in order to support unencrypted openssh-key-v1

I think the reasonable approach for now, is just vendoring sshkeys with the applied patches and wait for the x/crypto/ssh package to support marshalling, then drop the dependency entirely