fix: only check host keys on requested hosts

See coop-cloud/organising#242.

pkg/ssh/ssh.go

@@ -427,6 +427,11 @@ func connectWithPasswordTimeout(host, username, port, pass string, timeout time.
 
 // EnsureHostKey ensures that a host key trusted and added to the ~/.ssh/known_hosts file
 func EnsureHostKey(hostname string) error {
+	if hostname == "default" || hostname == "local" {
+		logrus.Debugf("not checking server SSH host key against local/default target")
+		return nil
+	}
+
 	exists, _, err := GetHostKey(hostname)
 	if err != nil {
 		return err