New libxmlb 0.2.0 which breaks API and ABI

[Richard Hughes]

Hi all,

I'm going to build the recently released libxmlb 0.2.0 into rawhide
and F33. It has two consumers (fwupd and gnome-software) both of which
I own, and I'll rebuild them at the same time. Any problems please
shout.

RIchard.