[neon-notifications] kcalcore new version 19.04.1

[Neon CI]

https://build.neon.kde.org/job/watcher_release_kde_kcalcore/377/display/redirect

#<Debian::UScan::DEHS::Package:0x000055b18d8d38c8 @name="kcalcore", @debian_uversion="19.04.0", @debian_mangled_uversion="19.04.0", @upstream_version="19.04.1", @upstream_url="http://download.kde.internal.neon.kde.org/stable/applications/19.04.1/src/kcalcore-19.04.1.tar.xz", @status="Newer version available">