[neon-notifications] Dev Required: pyqt5 - 5.15.9

[Neon CI]

https://build.neon.kde.org/job/watcher_release_forks_pyqt5/509/display/redirect

#<Debian::UScan::DEHS::Package:0x0000558c338c58b0 @name="pyqt5", @debian_uversion="5.15.8+dfsg", @debian_mangled_uversion="5.15.8", @upstream_version="5.15.9", @upstream_url="https://pypi.debian.net/PyQt5/PyQt5-5.15.9.tar.gz", @status="Newer version available">