Fix wrong method for expanding known hosts file path

Signed-off-by: Kimmo Lehto <klehto@mirantis.com>

ssh/connection.go

@@ -311,7 +311,7 @@ func (c *Connection) hostkeyCallback() (ssh.HostKeyCallback, error) {
 	}
 
 	c.Log().Tracef("using default known_hosts file %s", hostkey.DefaultKnownHostsPath)
-	defaultPath, err := homedir.ExpandFile(hostkey.DefaultKnownHostsPath)
+	defaultPath, err := homedir.Expand(hostkey.DefaultKnownHostsPath)
 	if err != nil {
 		return nil, fmt.Errorf("expand known_hosts file path: %w", err)
 	}