TST: one more version to xfail

Author: bsipocz

tests/test_doctestplus.py

@@ -1142,7 +1142,7 @@ def f():
 
 
 @pytest.mark.xfail(
-        python_version() in ('3.11.9', '3.11.10', '3.12.3'),
+        python_version() in ('3.11.9', '3.11.10', '3.11.11', '3.12.3'),
         reason='broken by https://github.com/python/cpython/pull/115440')
 def test_ufunc(testdir):
     pytest.importorskip('numpy')