[neon-notifications] Dev Required: qbs - 2.6.0

[Neon CI]

https://build.neon.kde.org/job/watcher_release_qt6_qbs/216/display/redirect

#<Debian::UScan::DEHS::Package:0x0000747352448650 @name="qbs", @debian_uversion="2.5.1", @debian_mangled_uversion="2.5.1", @upstream_version="2.6.0", @upstream_url="https://qt-mirror.dannhauer.de/official_releases/qbs/2.6.0/qbs-src-2.6.0.tar.gz", @status="Newer version available">