[neon-notifications] Releasing: mbox-importer - 23.04.1

[Neon CI]

https://build.neon.kde.org/job/watcher_release_kde_mbox-importer/622/display/redirect

#<Debian::UScan::DEHS::Package:0x00005621b21a9a80 @name="mbox-importer", @debian_uversion="23.04.0", @debian_mangled_uversion="23.04.0", @upstream_version="23.04.1", @upstream_url="http://download.kde.internal.neon.kde.org/stable/release-service/23.04.1/src/mbox-importer-23.04.1.tar.xz", @status="Newer version available">