[neon-notifications] Dev Required: pipewire - 0.3.38

[Neon CI]

https://build.neon.kde.org/job/watcher_release_backports-focal_pipewire/9/display/redirect

#<Debian::UScan::DEHS::Package:0x000055b012f1faf0 @name="pipewire", @debian_uversion="0.3.33", @debian_mangled_uversion="0.3.33", @upstream_version="0.3.38", @upstream_url="https://github.com/PipeWire/pipewire/archive/refs/tags/0.3.38.tar.gz", @status="Newer version available">