Get werkzeug from fedorapeople rather than koji
    
    The build in koji was a scratch-build and there it will disapear at
    a point. So we moved the RPM as well as source RPM to fedorapeople
    where it be more stable.
    
    Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr></pingou@pingoured.fr>