[neon-notifications] Releasing: kdegraphics-thumbnailers-5 - 24.12.0

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_kdegraphics-thumbnailers-5/118/display/redirect

#<Debian::UScan::DEHS::Package:0x000075c1e798c730 @name="kdegraphics-thumbnailers-5", @debian_uversion="24.08.3", @debian_mangled_uversion="24.08.3", @upstream_version="24.12.0", @upstream_url="http://download.kde.internal.neon.kde.org/stable/release-service/24.12.0/src/kdegraphics-thumbnailers-24.12.0.tar.xz", @status="Newer version available">