[neon-notifications] Releasing: digikam - 9.1.0

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_digikam/598/display/redirect

#<Debian::UScan::DEHS::Package:0x000076bd17305070 @name="digikam", @debian_uversion="9.0.0", @debian_mangled_uversion="9.0.0", @upstream_version="9.1.0", @upstream_url="https://download.kde.internal.neon.kde.org/stable/digikam/9.1.0/digiKam-9.1.0.tar.xz", @status="Newer version available">