[neon-notifications] Releasing: kunifiedpush - 24.12.3

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_kunifiedpush/84/display/redirect

#<Debian::UScan::DEHS::Package:0x0000799c26690b90 @name="kunifiedpush", @debian_uversion="24.12.2", @debian_mangled_uversion="24.12.2", @upstream_version="24.12.3", @upstream_url="http://download.kde.internal.neon.kde.org/stable/release-service/24.12.3/src/kunifiedpush-24.12.3.tar.xz", @status="Newer version available">