[neon-notifications] Releasing: kdegraphics-thumbnailers-5 - 24.08.3

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_kdegraphics-thumbnailers-5/87/display/redirect

#<Debian::UScan::DEHS::Package:0x00007fd6291029d8 @name="kdegraphics-thumbnailers-5", @debian_uversion="24.08.2", @debian_mangled_uversion="24.08.2", @upstream_version="24.08.3", @upstream_url="http://download.kde.internal.neon.kde.org/stable/release-service/24.08.3/src/kdegraphics-thumbnailers-24.08.3.tar.xz", @status="Newer version available">