Merge setup.cfg into pyproject.toml

[zdc217]

No description provided.

[zdc217]

Tests are failing on macos 3.11 and 3.13 with:

python setup.py sdist bdist_wheel
...
creating 'dist/phantom_toolbox-0.1.dev1-py3-none-any.whl' and adding 'build/bdist.macosx-10.9-universal2/wheel' to it 
...
tox -e wheel --notest --installpkg dist/phantom_toolbox-0.0.0-py3-none-any.whl dist/phantom_toolbox-0.1.dev1-py3-none-any.whl
ROOT: HandledError| unrecognized arguments: dist/phantom_toolbox-0.1.dev1-py3-none-any.whl
hint: if you tried to pass arguments to a command use -- to separate them from tox ones
make: *** [.tox/wheel/pyvenv.cfg] Error 254
Error: Process completed with exit code 2.

The make freeze is failing because a second build is being triggered that causes a second wheel to be built. The second wheel is passed along with the original wheel to tox causing it to fail.

To fix the issue we will have to find out why the freeze target in the Makefile is rebuilding the wheel.