renderer: Fix type-argument mismatch
GLib.List<Rygel.DLNAProfile> vs GLib.List<weak Rygel.DLNAProfile>
rygel-media-renderer-plugin.vala:47.13-47.39: error: Return: Cannot convert from `GLib.List<Rygel.DLNAProfile>' to `GLib.List<weak Rygel.DLNAProfile>'
return _supported_profiles;
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Compilation failed: 1 error(s), 0 warning(s)