[neon-notifications] Releasing: index-fm - 4.0.0

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_index-fm/26/display/redirect

#<Debian::UScan::DEHS::Package:0x00007f60e350c738 @name="index-fm", @debian_uversion="3.1.0", @debian_mangled_uversion="3.1.0", @upstream_version="4.0.0", @upstream_url="http://download.kde.internal.neon.kde.org/stable/maui/index/4.0.0/index-fm-4.0.0.tar.xz", @status="Newer version available">