[neon-notifications] Releasing: plasma-systemmonitor - 5.23.0

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_plasma-systemmonitor/17/display/redirect

#<Debian::UScan::DEHS::Package:0x000056031e9a81f8 @name="plasma-systemmonitor", @debian_uversion="5.22.5", @debian_mangled_uversion="5.22.5", @upstream_version="5.23.0", @upstream_url="https://download.kde.internal.neon.kde.org/stable/plasma/5.23.0/plasma-systemmonitor-5.23.0.tar.xz", @status="Newer version available">