[neon-notifications] kirigami2 new version 5.73.0

[Neon CI]

https://build.neon.kde.org/job/watcher_release_kde_kirigami/197/display/redirect

#<Debian::UScan::DEHS::Package:0x000055c8188c5b00 @name="kirigami2", @debian_uversion="5.72.0", @debian_mangled_uversion="5.72.0", @upstream_version="5.73.0", @upstream_url="https://download.kde.internal.neon.kde.org/stable/frameworks/5.73/kirigami2-5.73.0.tar.xz", @status="Newer version available">