Restore running the test suite on Meson builds
    
    Meson is pretty critical at this point, so we should be running
    the test suite for each build to make sure it isn't subtly broken.
    
    This reverts commit bbb311520183277acd30bb7f844feadc5a173454.
    
    Signed-off-by: Neal Gompa <ngompa13@gmail.com>