Update CFFI test for Python 3
Update CFFI test for Python 3

Patch by Arfrever Frehtes Taifersar Arahesis
ArvinPan/pyzmq,yyt030/pyzmq,Mustard-Systems-Ltd/pyzmq,Mustard-Systems-Ltd/pyzmq,Mustard-Systems-Ltd/pyzmq,yyt030/pyzmq,ArvinPan/pyzmq,dash-dash/pyzmq,ArvinPan/pyzmq,swn1/pyzmq,caidongyun/pyzmq,dash-dash/pyzmq,swn1/pyzmq,caidongyun/pyzmq,caidongyun/pyzmq,swn1/pyzmq,dash-dash/pyzmq,yyt030/pyzmq