[neon-notifications] Dev Required: libglib-testing - 0.1.1

[Neon CI]

https://build.neon.kde.org/job/watcher_release_backports-focal_libglib-testing/435/display/redirect

#<Debian::UScan::DEHS::Package:0x000055c6d4b58740 @name="libglib-testing", @debian_uversion="0.1.0", @debian_mangled_uversion="0.1.0", @upstream_version="0.1.1", @upstream_url="https://gitlab.gnome.org/pwithnall/libglib-testing/-/archive/0.1.1/libglib-testing-0.1.1.tar.bz2", @status="Newer version available">