macOS wheels fail to build on CircleCI due to antiquated `python-challenge-bypass-ristretto` wheels on PyPI

[crwood]

As seen in CircleCI runs like this one, the "Populate Wheelhouse" job fails on macOS as follows:

Building wheel for python-challenge-bypass-ristretto (setup.py) ... error
  error: subprocess-exited-with-error
  
  × python setup.py bdist_wheel did not run successfully.
  │ exit code: 1
  ╰─> [25 lines of output]
      /Users/distiller/project/venv/lib/python3.9/site-packages/setuptools/__init__.py:94: _DeprecatedInstaller: setuptools.installer and fetch_build_eggs are deprecated.
      !!
      
              ********************************************************************************
              Requirements should be satisfied by a PEP 517 installer.
              If you are using pip, you can try `pip install --use-pep517`.
              ********************************************************************************
      
      !!
        dist.fetch_build_eggs(dist.setup_requires)
      WARNING setuptools_scm.pyproject_reading toml section missing 'pyproject.toml does not contain a tool.setuptools_scm section'
      Traceback (most recent call last):
        File "/private/var/folders/df/bxz9cc217md0268__6llljk80000gn/T/pip-wheel-uu0e0i2l/python-challenge-bypass-ristretto_00dd3ec5382149478790bd9ee7351ec9/.eggs/setuptools_scm-8.1.0-py3.9.egg/setuptools_scm/_integration/pyproject_reading.py", line 36, in read_pyproject
          section = defn.get("tool", {})[tool_name]
      KeyError: 'setuptools_scm'
      running bdist_wheel
      running build
      running build_py
      creating build/lib
      creating build/lib/challenge_bypass_ristretto
      copying challenge_bypass_ristretto/__init__.py -> build/lib/challenge_bypass_ristretto
      creating build/lib/challenge_bypass_ristretto/tests
      copying challenge_bypass_ristretto/tests/__init__.py -> build/lib/challenge_bypass_ristretto/tests
      copying challenge_bypass_ristretto/tests/test_privacypass.py -> build/lib/challenge_bypass_ristretto/tests
      error: [Errno 2] No such file or directory: './challenge-bypass-ristretto-ffi'
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for python-challenge-bypass-ristretto
  Running setup.py clean for python-challenge-bypass-ristretto
Successfully built zero-knowledge-access-pass-authorizer pyutil
Failed to build python-challenge-bypass-ristretto
ERROR: Failed to build one or more wheels

Exited with code exit status 1

[crwood]

Note that this is failure stems from attempting to build the python-challenge-bypass-ristretto wheel (upon which ZKAPAuthorizer depends): the latest stable release of python-challenge-bypass-ristretto on PyPI provides wheels for macOS 10 and 11 only, however, CircleCI currently supports macOS 12 through 14. Presumably, this accounts for why CircleCI is attempting to build the wheel, as seen above (rather than using the already-compiled one available on PyPI).

A newer pre-release of python-challenge-bypass-ristretto is available which provides a wheel for macOS 12 (in addition to 10 and 11), however, since macOS 12 is no longer supported as of Sept. 16, 2024, it's only a matter of (brief?) time before the same failure occurs on a newer version of macOS.