Error in AppVeyor build on macOS for pp38-macosx_x86_64 wheel

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Describe the bug
The AppVeyor build on macOS failed when installing the pp38-macosx_x86_64 wheel.

Error message
According to AppVeyor:

$ /Users/appveyor/venv3.7.11/bin/python -sS /Users/appveyor/Library/Caches/cibuildwheel/virtualenv-20.21.1.pyz --activators= --no-periodic-update --pip=23.1.2 --setuptools=67.8.0 --wheel=0.40.0 --symlink-app-data --python /Users/appveyor/Library/Caches/cibuildwheel/pypy3.8-v7.3.11-macos_x86_64/bin/pypy3 /private/var/folders/zc/w54y8dpx71z33yjn8gmrlq3w0000gn/T/cibw-run-clahtgvv/pp38-macosx_x86_64/build/venv
created virtual environment PyPy3.8.16.final.0-64 in 513ms
  creator PyPy3Posix(dest=/private/var/folders/zc/w54y8dpx71z33yjn8gmrlq3w0000gn/T/cibw-run-clahtgvv/pp38-macosx_x86_64/build/venv, clear=False, no_vcs_ignore=False, global=False)
  seeder FromAppData(download=False, pip=23.1.2, setuptools=67.8.0, wheel=0.40.0, via=symlink, app_data_dir=/Users/appveyor/Library/Application Support/virtualenv)
    added seed packages: pip==23.1.2, setuptools==67.8.0, wheel==0.40.0

$ python -m pip install --upgrade pip -c /Users/appveyor/venv3.7.11/lib/python3.7/site-packages/cibuildwheel/resources/constraints-python38.txt
dyld: lazy symbol binding failed: Symbol not found: _ffi_closure_alloc
  Referenced from: /Users/appveyor/Library/Caches/cibuildwheel/pypy3.8-v7.3.11-macos_x86_64/bin/libpypy3-c.dylib
  Expected in: flat namespace

dyld: Symbol not found: _ffi_closure_alloc
  Referenced from: /Users/appveyor/Library/Caches/cibuildwheel/pypy3.8-v7.3.11-macos_x86_64/bin/libpypy3-c.dylib
  Expected in: flat namespace

Environment (please complete the following information):

• OS: macOS Mojave
• Python version: PyPy 3.8 x86_64