Update macos version for github actions (#4917)
Update macos version for github actions (#4917)

See https://github.com/cython/cython/issues/4913
scoder/cython,scoder/cython,da-woods/cython,cython/cython,scoder/cython,cython/cython,da-woods/cython,cython/cython,da-woods/cython,cython/cython,scoder/cython,da-woods/cython