[neon-notifications] Releasing: rkward - 0.7.3

[Neon CI]

https://build.neon.kde.org/job/watcher_release_extras_rkward/208/display/redirect

#<Debian::UScan::DEHS::Package:0x0000563e60745460 @name="rkward", @debian_uversion="0.7.2", @debian_mangled_uversion="0.7.2", @upstream_version="0.7.3", @upstream_url="https://download.kde.internal.neon.kde.org/stable/rkward/0.7.3/src/rkward-0.7.3.tar.gz", @status="Newer version available">