[neon-notifications] Dev Required: poppler - 23.06.0

[Neon CI]

https://build.neon.kde.org/job/watcher_release_backports-jammy_poppler-jammy/262/display/redirect

#<Debian::UScan::DEHS::Package:0x000055e98208f298 @name="poppler", @debian_uversion="23.04.0", @debian_mangled_uversion="23.04.0", @upstream_version="23.06.0", @upstream_url="https://poppler.freedesktop.org/poppler-23.06.0.tar.xz", @status="Newer version available">