Fix pytests and install pre-release Cython for free-threading support

Author: thalassemia

.github/workflows/release.yml

@@ -112,8 +112,11 @@ jobs:
           CIBW_BUILD: cp${{ matrix.python }}-${{ matrix.platform_id }}
           CIBW_TEST_REQUIRES: pytest psutil
           CIBW_TEST_COMMAND: |
-            cp -r {project}/stochastic_arrow/test tmp_test_dir/
-            pytest tmp_test_dir
+            mkdir tmp_test_dir
+            cp -r {project}/stochastic_arrow/test tmp_test_dir/test
+            cp -r {project}/data tmp_test_dir/data
+            cd tmp_test_dir
+            pytest
           CIBW_ENVIRONMENT: USE_CYTHON=1
         uses: pypa/[email protected]
 

pyproject.toml

@@ -1,3 +1,3 @@
 [build-system]
-requires = ["setuptools", "wheel", "cython", "numpy"]
+requires = ["setuptools", "wheel", "cython==3.1.0a1; python_version=='3.13'", "cython; python_version!='3.13'", "numpy"]
 build-backend = "setuptools.build_meta"