[neon-notifications] Releasing: kasts - 23.08.4

[Neon CI]

https://build.neon.kde.org/job/watcher_release_mobile_kasts/343/display/redirect

#<Debian::UScan::DEHS::Package:0x00005638fde9d798 @name="kasts", @debian_uversion="23.08.3", @debian_mangled_uversion="23.08.3", @upstream_version="23.08.4", @upstream_url="http://download.kde.internal.neon.kde.org/stable/release-service/23.08.4/src/kasts-23.08.4.tar.xz", @status="Newer version available">