The parameter "keys" is empty

/home/runner/.ssh/fake0.github.com: too short lines

/home/runner/.ssh/fake0.github.com: private key must start with the line "-----BEGIN...-----" and end with the line "-----END...-----"

/home/runner/.ssh/fake0.github.com: illegal comment: ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE42hEw//n5ZXxt/9UD5EdA5UjDknDEgsz9C0orF/MGf

/home/runner/.ssh/fake0.github.com: illegal comment: ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEFjvGRWv2yShSljq7XmYusvS3j0SOL/nltaHfO8RUfg hello world

/home/runner/.ssh/fake0.github.com: key comment doesn't start with "[email protected]:"