[neon-notifications] Dev Required: libjxl-testdata - 0.0~git20240106.ff8d743

[Neon CI]

https://build.neon.kde.org/job/watcher_release_backports-jammy_libjxl-testdata/295/display/redirect

#<Debian::UScan::DEHS::Package:0x00007f98bf20a030 @name="libjxl-testdata", @debian_uversion="0.0~git20230623.d0c6419", @debian_mangled_uversion="0.0~git20230623.d0c6419", @upstream_version="0.0~git20240106.ff8d743", @upstream_url="https://github.com/libjxl/testdata HEAD", @status="Newer version available">