[neon-notifications] libkf5sane new version 19.12.2

[Neon CI]

https://build.neon.kde.org/job/watcher_release_kde_libksane/668/display/redirect

#<Debian::UScan::DEHS::Package:0x0000559e9862a980 @name="libkf5sane", @debian_uversion="19.12.1", @debian_mangled_uversion="19.12.1", @upstream_version="19.12.2", @upstream_url="http://download.kde.internal.neon.kde.org/stable/release-service/19.12.2/src/libksane-19.12.2.tar.xz", @status="Newer version available">