demos: update libevdev git repository link to gitlab's one (!43) · Merge requests · GNOME / libmanette · GitLab

Vanadiae requested to merge Vanadiae/libmanette:evdev-manifest-remote into master Nov 14, 2020

As fdo's anongit seems to timeout frequently (CI failures, etc.).

see https://gitlab.gnome.org/Vanadiae/libmanette/-/jobs/985917 for example (it also occurred to me the first time I compiled libmanette locally).