[neon-notifications] Dev Required: xdg-desktop-portal - 1.20.1

[Neon CI]

https://build.neon.kde.org/job/watcher_release_backports-noble_xdg-desktop-portal-noble/249/display/redirect

#<Debian::UScan::DEHS::Package:0x00007733c2dee5a0 @name="xdg-desktop-portal", @debian_uversion="1.18.4", @debian_mangled_uversion="1.18.4", @upstream_version="1.20.1", @upstream_url="https://github.com/flatpak/xdg-desktop-portal/releases/download/1.20.1/xdg-desktop-portal-1.20.1.tar.xz", @status="Newer version available">