[neon-notifications] plasma-integration new version 5.17.3

[Neon CI]

https://build.neon.kde.org/job/watcher_release_kde_plasma-integration/607/display/redirect

#<Debian::UScan::DEHS::Package:0x00005626d954c490 @name="plasma-integration", @debian_uversion="5.17.2", @debian_mangled_uversion="5.17.2", @upstream_version="5.17.3", @upstream_url="https://download.kde.internal.neon.kde.org/stable/plasma/5.17.3/plasma-integration-5.17.3.tar.xz", @status="Newer version available">