https://gitlab.gnome.org/GNOME/gnome-software/-/compare/42.4...43.alpha
Enable malcontent and gudev support. We did not have the former packaged when it was added (59816457b6) and probably forgot to introduce the latter (1c1d677149).
Also do not build tests since they require extra dependencies and do not work anyway.
Changelog-Reviewed-By: Jan Tojnar <jtojnar@gmail.com>