package/ci: and now let's fix Linux build, again.
package/ci: and now let's fix Linux build, again.

Also updated to SDL 2.0.4.

MiUishadow/magnum,MiUishadow/magnum,MiUishadow/magnum,MiUishadow/magnum,MiUishadow/magnum,MiUishadow/magnum