[neon-notifications] Dev Required: keyman - 17.0.312

[Neon CI]

https://build.neon.kde.org/job/watcher_release_backports-jammy_keyman-ubuntu/9/display/redirect

#<Debian::UScan::DEHS::Package:0x000055fef56e1050 @name="keyman", @debian_uversion="17.0.295", @debian_mangled_uversion="17.0.295", @upstream_version="17.0.312", @upstream_url="https://downloads.keyman.com/linux/beta/17.0.312/keyman-17.0.312.tar.gz", @status="Newer version available">