pyroaring: Override Cython version for tests/build (#436908)

  '';

  build-system = [

    cython

    (cython.overrideAttrs (rec {

      name = "cython";

      version = "3.0.12";

      src = fetchFromGitHub {

        owner = "cython";

        repo = "cython";

        tag = version;

        hash = "sha256-clJXjQb6rVECirKRUGX0vD5a6LILzPwNo7+6KKYs2pI=";

      };

    }))

    setuptools

  ];