[neon-notifications] ksystemlog new version 18.12.1

[Neon CI]

https://build.neon.kde.org/job/watcher_release_kde_ksystemlog/259/display/redirect

#<Debian::UScan::DEHS::Package:0x0000561e4b5c7438 @name="ksystemlog", @debian_uversion="18.12.0", @debian_mangled_uversion="18.12.0", @upstream_version="18.12.1", @upstream_url="http://download.kde.internal.neon.kde.org/stable/applications/18.12.1/src/ksystemlog-18.12.1.tar.xz", @status="Newer version available">