Run tests on Python 3.13 release candidate

[cclauss]

• https://www.python.org/download/pre-releases
• https://github.com/actions/setup-python/blob/main/docs/advanced-usage.md#allow-pre-releases

Blocked by:

• Fix #392: Port to Python 3.13 python-greenlet/greenlet#396

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.74%. Comparing base (4710628) to head (cd36d94).

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Additional details and impacted files

@@            Coverage Diff             @@
##           master      #12      +/-   ##
==========================================
- Coverage   63.03%   62.74%   -0.29%     
==========================================
  Files          61       57       -4     
  Lines        2283     2279       -4     
==========================================
- Hits         1439     1430       -9     
- Misses        844      849       +5     

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[ozekik]

Thank you for your contribution! It seems NumPy hasn't released a wheel for Python 3.13 yet, so let's wait until it's available before merging.

[cclauss]

% alias python_in_docker="docker run --env GITHUB_USER=$USER --tty --interactive --rm --volume $(echo pwd):/${PWD##*/} --workdir /${PWD##*/} python:3.13-rc bash"

% python_in_docker

% python3 --version

Python 3.13.0rc1

% python3 -m pip install numpy

Collecting numpy
  Downloading numpy-2.0.1.tar.gz (18.9 MB)
[ ... ]
Successfully installed numpy-2.0.1