Use newer XCode image (as in current wheel builds).
Use newer XCode image (as in current wheel builds).

da-woods/cython,scoder/cython,scoder/cython,cython/cython,cython/cython,scoder/cython,cython/cython,scoder/cython,da-woods/cython,cython/cython,da-woods/cython,da-woods/cython