Install older Cython

Author: mroeschke

scripts/cibw_before_build_windows.sh

@@ -9,6 +9,7 @@ done
 FREE_THREADED_BUILD="$(python -c"import sysconfig; print(bool(sysconfig.get_config_var('Py_GIL_DISABLED')))")"
 if [[ $FREE_THREADED_BUILD == "True" ]]; then
     python -m pip install -U pip
-    python -m pip install -i https://pypi.anaconda.org/scientific-python-nightly-wheels/simple cython
+    # python -m pip install -i https://pypi.anaconda.org/scientific-python-nightly-wheels/simple cython
+    python -m pip install git+https://github.com/cython/cython.git@030e3886fa094ecae6121f8ccacaf814956dca5c
     python -m pip install "ninja<1.11.1.4" meson-python versioneer[toml] numpy==2.2.2
 fi