Skip a failing test on main for now (#22911)

fix
Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>

tests/models/roberta/test_modeling_roberta.py

@@ -397,6 +397,10 @@ class RobertaModelTest(ModelTesterMixin, GenerationTesterMixin, PipelineTesterMi
     )
     fx_compatible = True
 
+    @unittest.skip(reason="Fix me @gante")
+    def test_assisted_greedy_search_matches_greedy_search(self):
+        super().test_assisted_greedy_search_matches_greedy_search()
+
     def setUp(self):
         self.model_tester = RobertaModelTester(self)
         self.config_tester = ConfigTester(self, config_class=RobertaConfig, hidden_size=37)