Add mock for LockdownInband Dbus callback (earlier one was mangled by Cider quickfix)

b/445994644

PiperOrigin-RevId: 846753235
Change-Id: I69da9797c205ae2d12ec016af0a035f4d3b47402
diff --git a/gbmcweb b/gbmcweb
index d08b360..ca5f17c 160000
--- a/gbmcweb
+++ b/gbmcweb
@@ -1 +1 @@
-Subproject commit d08b360b57de9c43217cd8588d4d7bd5c7a50d20
+Subproject commit ca5f17cb360e7ab9b39648e05e73fc8b38afcbc5