trivial: Work around a GObjectIntrospection warning
trivial: Work around a GObjectIntrospection warning

We broke this rule: https://gi.readthedocs.io/en/latest/writingbindableapis.html?highlight=boxed#don-t-have-properties-and-methods-with-the-same-name

fwupd/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd,fwupd/fwupd