[neon-notifications] Dev Required: freerdp3 - 3.15.0

[Neon CI]

https://build.neon.kde.org/job/watcher_release_backports-noble_freerdp3-noble/132/display/redirect

#<Debian::UScan::DEHS::Package:0x00007a1bf3569328 @name="freerdp3", @debian_uversion="3.10.3+dfsg", @debian_mangled_uversion="3.10.3", @upstream_version="3.15.0", @upstream_url="https://api.github.com/repos/FreeRDP/FreeRDP/tarball/3.15.0", @status="Newer version available">