Fix errors due to setuptools 61.0

Something changed in setuptools that causes the old method of forcing
platform-specific wheels to be built to break for certain configurations
(specifically, Windows builds with Python 3.7). This alternative approach
appears to be more robust.

Also increase the logging from 'pip wheel' to help with debugging

.github/workflows/main.yml

@@ -492,7 +492,7 @@ jobs:
           architecture: x64
       - name: Install Python dependencies
         run: |
-          python -m pip install -U pip 'setuptools>=43.0.0' wheel
+          python -m pip install -U pip setuptools wheel
           python -m pip install scons pypiwin32 numpy ruamel.yaml cython h5py pandas pytest pytest-github-actions-annotate-failures
       - name: Restore Boost cache
         uses: actions/cache@v2

interfaces/cython/SConscript

@@ -102,7 +102,7 @@ ext = localenv.LoadableModule(f"cantera/_cantera{module_ext}",
                               obj, LIBPREFIX="", SHLIBSUFFIX=module_ext,
                               SHLIBPREFIX="", LIBSUFFIXES=[module_ext])
 
-build_cmd = ("$python_cmd_esc -m pip wheel --no-build-isolation --no-deps "
+build_cmd = ("$python_cmd_esc -m pip wheel -v --no-build-isolation --no-deps "
              "--wheel-dir=build/python/dist build/python")
 plat = info['plat'].replace('-', '_').replace('.', '_')
 wheel_name = (f"Cantera-{env['cantera_version']}-cp{py_version_nodot}"

interfaces/cython/setup.py

@@ -1,5 +1,10 @@
-from setuptools import setup, Extension
+from setuptools import setup
+from setuptools.dist import Distribution
 
-extension = Extension("cantera._cantera", sources=[])
+class BinaryDistribution(Distribution):
+    def has_ext_modules(self):
+        return True
 
-setup(ext_modules=[extension])
+setup(
+    distclass=BinaryDistribution,
+)