Wrap dependencies add a ton of warnings with the latest GCC in Fedora 42. Squelch them by specifying that these dependencies are not a part of the gstreamer project, and should be treated as system deps. libsoup needs some porting work for the bump, and vorbis/lame are already at their latest releases. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8753>