[neon-notifications] Releasing: shelf - 3.0.2

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_shelf/184/display/redirect

#<Debian::UScan::DEHS::Package:0x000055c1367ce7a8 @name="shelf", @debian_uversion="3.0.1", @debian_mangled_uversion="3.0.1", @upstream_version="3.0.2", @upstream_url="http://download.kde.internal.neon.kde.org/stable/maui/shelf/3.0.2/shelf-3.0.2.tar.xz", @status="Newer version available">