[neon-notifications] Releasing: kdiagram - 3.0.1

[Neon CI]

https://build.neon.kde.org/job/watcher_release_extras_kdiagram/833/display/redirect

#<Debian::UScan::DEHS::Package:0x00005624b0554170 @name="kdiagram", @debian_uversion="3.0.0", @debian_mangled_uversion="3.0.0", @upstream_version="3.0.1", @upstream_url="http://download.kde.internal.neon.kde.org/stable/kdiagram/3.0.1/kdiagram-3.0.1.tar.xz", @status="Newer version available">