use cffi 1.17.0rc1

Author: graingert

pyproject.toml

@@ -75,7 +75,9 @@ legacy_tox_ini = """
  [testenv]
  package = wheel
  wheel_build_env = .pkg
- deps = httpbin @ https://github.com/graingert/httpbin/archive/refs/heads/patch-1.zip
+ deps =
+ httpbin @ https://github.com/graingert/httpbin/archive/refs/heads/patch-1.zip
+ cffi >= 1.17.0rc1
  extras = test
  commands = pytest -v -s {posargs}
  install_command = python -I -m pip install --use-pep517 {opts} {packages}