Increase the timeout for some GLib tests
Increase the timeout for some GLib tests

The CI infrastructure is shared and running inside a containerised
environment, which means tests may take more time to finish on it
than they would on a faster, personal machine.

https://bugzilla.gnome.org/show_bug.cgi?id=793635

endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib