[neon-notifications] Dev Required: gpgmepp - 2.1.0

[Neon CI]

https://build.neon.kde.org/job/watcher_release_backports-noble_gpgmepp-noble/67/display/redirect

#<Debian::UScan::DEHS::Package:0x0000784ff5ad90b8 @name="gpgmepp", @debian_uversion="2.0.0", @debian_mangled_uversion="2.0.0", @upstream_version="2.1.0", @upstream_url="https://gnupg.org/ftp/gcrypt/gpgmepp/gpgmepp-2.1.0.tar.xz", @status="Newer version available">