freedreno/ci: add flake seen on a630
Failed in https://gitlab.freedesktop.org/mesa/mesa/-/jobs/52372985 and passed in the retry https://gitlab.freedesktop.org/mesa/mesa/-/jobs/52374333
Failed in https://gitlab.freedesktop.org/mesa/mesa/-/jobs/52372985 and passed in the retry https://gitlab.freedesktop.org/mesa/mesa/-/jobs/52374333