gitlab-ci: Disable meson-mingw32-x86_64 job again for now
The wrapdb.mesonbuild.com SSL certificate expired, causing the job to fail: https://gitlab.freedesktop.org/mesa/mesa/-/jobs/731864
Switching to http:// doesn't avoid it: https://gitlab.freedesktop.org/daenzer/mesa/-/jobs/732043
/cc @dbaker