python3Packages.cmd2: disable failing test

This is due to expecting a rich version lt 15. Upstream yanked the test
after the rich 15 update.

pkgs/development/python-modules/cmd2/default.nix

@@ -46,6 +46,8 @@ buildPythonPackage rec {
     # Don't require vim for tests, it causes lots of rebuilds
     "test_find_editor_not_specified"
     "test_transcript"
+    # Removed upstream after rich 15 update
+    "test_from_ansi_wrapper"
   ];
 
   pythonImportsCheck = [ "cmd2" ];