[neon-notifications] Dev Required: hotspot - 1.5.1

[Neon CI]

https://build.neon.kde.org/job/watcher_release_neon-packaging_hotspot/1004/display/redirect

#<Debian::UScan::DEHS::Package:0x00007f6480cce228 @name="hotspot", @debian_uversion="1.4.1", @debian_mangled_uversion="1.4.1", @upstream_version="1.5.1", @upstream_url="https://github.com/KDAB/hotspot/releases/download/v1.5.1/hotspot-v1.5.1.tar.gz", @status="Newer version available">