community/jellyfin{,web}: upgrade to 10.9.4
https://github.com/jellyfin/jellyfin-web/releases
https://github.com/jellyfin/jellyfin/releases
jellyfin-web 10.9.3 also contains some security fixes that should probably be backported to 3.20-stable
https://github.com/jellyfin/jellyfin-web/releases
https://github.com/jellyfin/jellyfin/releases
jellyfin-web 10.9.3 also contains some security fixes that should probably be backported to 3.20-stable