[neon-notifications] Releasing: ruqola - 2.7.3

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_ruqola/606/display/redirect

#<Debian::UScan::DEHS::Package:0x00007541e7f838a8 @name="ruqola", @debian_uversion="2.7.2", @debian_mangled_uversion="2.7.2", @upstream_version="2.7.3", @upstream_url="http://download.kde.internal.neon.kde.org/stable/ruqola/ruqola-2.7.3.tar.xz", @status="Newer version available">