[neon-notifications] Releasing: kwin-selenium - 6.6.3

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_kwin-selenium-tester/142/display/redirect

#<Debian::UScan::DEHS::Package:0x0000705edd5fbc78 @name="kwin-selenium", @debian_uversion="6.6.2", @debian_mangled_uversion="6.6.2", @upstream_version="6.6.3", @upstream_url="https://download.kde.internal.neon.kde.org/stable/plasma/6.6.3/kwin-6.6.3.tar.xz", @status="Newer version available">