Merge pull request #255306 from natsukium/memray/fix-python311

memray: fix test with python311

pkgs/development/tools/memray/default.nix

···
   nativeCheckInputs = with python3.pkgs; [
     ipython
     pytestCheckHook
-  ] ++ lib.optionals (pythonOlder "3.11") [
+  ] ++ lib.optionals (pythonOlder "3.12") [
     greenlet
   ];