python3Packages.sphinxcontrib_bayesnet: mark unconditionally broken

pkgs/development/python-modules/sphinxcontrib-bayesnet/default.nix

@@ -16,10 +16,10 @@ buildPythonPackage rec {
   pythonImportsCheck = [ "sphinxcontrib.bayesnet" ];
 
   meta = with lib; {
-    broken = (stdenv.isLinux && stdenv.isAarch64) || stdenv.isDarwin;
     homepage = "https://github.com/jluttine/sphinx-bayesnet";
     description = "Bayesian networks and factor graphs in Sphinx using TikZ syntax";
     license = licenses.gpl3Only;
     maintainers = with maintainers; [ jluttine ];
+    broken = true; # relies on 2to3 conversion, which was removed from setuptools>=58.0
   };
 }