MacOS Azure Pipelines fails to install requirements.txt for Python

[N-Dekker]

Errors encountered at the Azure Pipelines CI on MacOS:

ERROR: Command errored out with exit status 1:
command: /Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/tmpMX6EIw
...
File "setup.py", line 5, in
with open('SimpleITK/Readme.md', encoding='utf-8') as f:
TypeError: 'encoding' is an invalid keyword argument for this function

And then, when explicitly specifying Python3:

   × python setup.py egg_info did not run successfully.
    │ exit code: 1
    ╰─> [4 lines of output]
        scikit-build is required to build from source.

After upgrade to macos-12:

2022-09-26T16:24:15.1932250Z Building wheels for collected packages: itk
2022-09-26T16:24:15.1944650Z   Building wheel for itk (setup.py): started
2022-09-26T16:24:16.8363120Z   Building wheel for itk (setup.py): finished with status 'error'
2022-09-26T16:24:16.8513630Z   error: subprocess-exited-with-error
2022-09-26T16:24:16.8515050Z   
2022-09-26T16:24:16.8516010Z   × python setup.py bdist_wheel did not run successfully.
2022-09-26T16:24:16.8517040Z   │ exit code: 1
2022-09-26T16:24:16.8518160Z   ╰─> [99 lines of output]

[N-Dekker]

Deferred. Takes too much time to solve now, and we have MacOS running tests on GitHub actions anyway.