CI fails on Python 3.7

[tueda]

https://github.com/tueda/donuts-python/actions/runs/18147524763

The job failed because Cython could not be installed for PyJNIus:

py37: exit 1 (2.20 seconds) /home/runner/work/donuts-python/donuts-python> python -I -m pip install 'importlib-resources>=1.3; python_version < "3.9"' pyjnius pid=2309
.pkg: _exit> python /opt/hostedtoolcache/Python/3.7.17/x64/lib/python3.7/site-packages/pyproject_api/_backend.py True setuptools.build_meta __legacy__
  error: subprocess-exited-with-error
  
  × pip subprocess to install build dependencies did not run successfully.
  │ exit code: 1
  ╰─> [8 lines of output]
      Collecting setuptools>=58.0.0
        Downloading setuptools-68.0.0-py3-none-any.whl.metadata (6.4 kB)
      Collecting wheel
        Downloading wheel-0.42.0-py3-none-any.whl.metadata (2.2 kB)
      ERROR: Ignored the following yanked versions: 0.29.29, 0.29.31
      ERROR: Ignored the following versions that require a different python version: 0.43.0 Requires-Python >=3.8; 0.44.0 Requires-Python >=3.8; 0.45.0 Requires-Python >=3.8; 0.45.1 Requires-Python >=3.8; 0.46.0 Requires-Python >=3.9; 0.46.1 Requires-Python >=3.9; 3.1.0 Requires-Python >=3.8; 3.1.0b1 Requires-Python >=3.8; 3.1.0rc1 Requires-Python >=3.8; 3.1.0rc2 Requires-Python >=3.8; 3.1.1 Requires-Python >=3.8; 3.1.2 Requires-Python >=3.8; 3.1.3 Requires-Python >=3.8; 3.1.4 Requires-Python >=3.8; 68.1.0 Requires-Python >=3.8; 68.1.2 Requires-Python >=3.8; 68.2.0 Requires-Python >=3.8; 68.2.1 Requires-Python >=3.8; 68.2.2 Requires-Python >=3.8; 69.0.0 Requires-Python >=3.8; 69.0.1 Requires-Python >=3.8; 69.0.2 Requires-Python >=3.8; 69.0.3 Requires-Python >=3.8; 69.1.0 Requires-Python >=3.8; 69.1.1 Requires-Python >=3.8; 69.2.0 Requires-Python >=3.8; 69.3 Requires-Python >=3.8; 69.3.0 Requires-Python >=3.8; 69.3.1 Requires-Python >=3.8; 69.4 Requires-Python >=3.8; 69.4.0 Requires-Python >=3.8; 69.4.1 Requires-Python >=3.8; 69.4.2 Requires-Python >=3.8; 69.5.0 Requires-Python >=3.8; 69.5.1 Requires-Python >=3.8; 70.0.0 Requires-Python >=3.8; 70.1.0 Requires-Python >=3.8; 70.1.1 Requires-Python >=3.8; 70.2.0 Requires-Python >=3.8; 70.3.0 Requires-Python >=3.8; 71.0.0 Requires-Python >=3.8; 71.0.1 Requires-Python >=3.8; 71.0.2 Requires-Python >=3.8; 71.0.3 Requires-Python >=3.8; 71.0.4 Requires-Python >=3.8; 71.1.0 Requires-Python >=3.8; 72.0.0 Requires-Python >=3.8; 72.1.0 Requires-Python >=3.8; 72.2.0 Requires-Python >=3.8; 73.0.0 Requires-Python >=3.8; 73.0.1 Requires-Python >=3.8; 74.0.0 Requires-Python >=3.8; 74.1.0 Requires-Python >=3.8; 74.1.1 Requires-Python >=3.8; 74.1.2 Requires-Python >=3.8; 74.1.3 Requires-Python >=3.8; 75.0.0 Requires-Python >=3.8; 75.1.0 Requires-Python >=3.8; 75.2.0 Requires-Python >=3.8; 75.3.0 Requires-Python >=3.8; 75.3.1 Requires-Python >=3.8; 75.3.2 Requires-Python >=3.8; 75.4.0 Requires-Python >=3.9; 75.5.0 Requires-Python >=3.9; 75.6.0 Requires-Python >=3.9; 75.7.0 Requires-Python >=3.9; 75.8.0 Requires-Python >=3.9; 75.8.1 Requires-Python >=3.9; 75.8.2 Requires-Python >=3.9; 75.9.0 Requires-Python >=3.9; 75.9.1 Requires-Python >=3.9; 76.0.0 Requires-Python >=3.9; 76.1.0 Requires-Python >=3.9; 77.0.1 Requires-Python >=3.9; 77.0.3 Requires-Python >=3.9; 78.0.1 Requires-Python >=3.9; 78.0.2 Requires-Python >=3.9; 78.1.0 Requires-Python >=3.9; 78.1.1 Requires-Python >=3.9; 79.0.0 Requires-Python >=3.9; 79.0.1 Requires-Python >=3.9; 80.0.0 Requires-Python >=3.9; 80.0.1 Requires-Python >=3.9; 80.1.0 Requires-Python >=3.9; 80.2.0 Requires-Python >=3.9; 80.3.0 Requires-Python >=3.9; 80.3.1 Requires-Python >=3.9; 80.4.0 Requires-Python >=3.9; 80.6.0 Requires-Python >=3.9; 80.7.0 Requires-Python >=3.9; 80.7.1 Requires-Python >=3.9; 80.8.0 Requires-Python >=3.9; 80.9.0 Requires-Python >=3.9
      ERROR: Could not find a version that satisfies the requirement Cython~=3.1.2 (from versions: 0.9.6.5, 0.9.6.6, 0.9.6.7, 0.9.6.8, 0.9.6.10b0, 0.9.6.10, 0.9.6.10.1, 0.9.6.11b0, 0.9.6.11, 0.9.6.12, 0.9.6.13, 0.9.6.13.1, 0.9.6.14, 0.9.8, 0.9.8.1, 0.9.8.1.1, 0.10, 0.10.1, 0.10.2, 0.10.3, 0.11, 0.11.1, 0.11.2, 0.11.3, 0.12, 0.12.1, 0.13, 0.14, 0.14.1, 0.15, 0.15.1, 0.16, 0.17, 0.17.1, 0.17.2, 0.17.3, 0.17.4, 0.18, 0.19, 0.19.1, 0.19.2, 0.20, 0.20.1, 0.20.2, 0.21, 0.21.1, 0.21.2, 0.22, 0.22.1, 0.23, 0.23.1, 0.23.2, 0.23.3, 0.23.4, 0.23.5, 0.24, 0.24.1, 0.25, 0.25.1, 0.25.2, 0.26, 0.26.1, 0.27, 0.27.1, 0.27.2, 0.27.3, 0.28, 0.28.1, 0.28.2, 0.28.3, 0.28.4, 0.28.5, 0.28.6, 0.29, 0.29.1, 0.29.2, 0.29.3, 0.29.4, 0.29.5, 0.29.6, 0.29.7, 0.29.8, 0.29.9, 0.29.10, 0.29.11, 0.29.12, 0.29.13, 0.29.14, 0.29.15, 0.29.16, 0.29.17, 0.29.18, 0.29.19, 0.29.20, 0.29.21, 0.29.22, 0.29.23, 0.29.24, 0.29.25, 0.29.26, 0.29.27, 0.29.28, 0.29.30, 0.29.32, 0.29.33, 0.29.34, 0.29.35, 0.29.36, 0.29.37, 3.0.0b1, 3.0.0b2, 3.0.0b3, 3.0.0rc1, 3.0.0rc2, 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9, 3.0.10, 3.0.11, 3.0.12)
      ERROR: No matching distribution found for Cython~=3.1.2
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.
  py37: FAIL code 1 (9.36 seconds)
  evaluation failed :( (9.43 seconds)