[neon-notifications] Releasing: marknote - 1.5.1

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_marknote/518/display/redirect

#<Debian::UScan::DEHS::Package:0x00007b3bcb350958 @name="marknote", @debian_uversion="1.5.0", @debian_mangled_uversion="1.5.0", @upstream_version="1.5.1", @upstream_url="https://download.kde.internal.neon.kde.org/stable/marknote/marknote-1.5.1.tar.xz", @status="Newer version available">