kup-backup is orphaned

[Shmerl <shtetldik+shmerl@gmail.com>]

Unfortunately it looks like kup-backup was orphaned due to maintainer

not having enough time for it:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1093521

For the reference, it does pull a bunch of Qt 5 and Kf 5 dependencies,

but newer upstream version can already use Qt 6 and Kf 6.

Regards,

Shmerl.