Fix absence of the Symlinks parameter for Destination when using tbot kube credentials (#50370)

Signed-off-by: Tim Buckley <tim@goteleport.com>
Co-authored-by: Vadim Aleksandrov <valeksandrov@me.com>

Author: 2 people

tool/tbot/kube.go

@@ -73,6 +73,10 @@ func onKubeCredentialsCommand(
 		return trace.Wrap(err)
 	}
 
+	if err = destination.CheckAndSetDefaults(); err != nil {
+		return trace.Wrap(err)
+	}
+
 	idData, err := destination.Read(ctx, config.IdentityFilePath)
 	if err != nil {
 		return trace.Wrap(err)