[neon-notifications] Dev Required: qt6-serialport - 6.6.1

[Neon CI]

https://build.neon.kde.org/job/watcher_release_qt6_qt6-serialport/147/display/redirect

#<Debian::UScan::DEHS::Package:0x00005637e77e98f0 @name="qt6-serialport", @debian_uversion="6.6.0", @debian_mangled_uversion="6.6.0", @upstream_version="6.6.1", @upstream_url="https://qt-mirror.dannhauer.de/official_releases/qt/6.6/6.6.1/submodules/qtserialport-everywhere-src-6.6.1.tar.xz", @status="Newer version available">