-- Relax Cython version requirement to work with available Cython ports

--- pyproject.toml.orig	2026-08-01 19:19:46 UTC
+++ pyproject.toml
@@ -1,6 +1,6 @@ build-backend = "setuptools.build_meta"
 [build-system]
 build-backend = "setuptools.build_meta"
-requires = ["Cython>=3.0.2,<3.1", "setuptools>=59.2.0", "wheel"]
+requires = ["Cython>0", "setuptools>=59.2.0", "wheel"]
 
 [tool.isort]
 # from https://black.readthedocs.io/en/stable/compatible_configs.html