Update `GPTNeoXLanguageGenerationTest` (#24193)

* fix

* fix

* fix

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

tests/models/gpt_neox/test_modeling_gpt_neox.py

@@ -314,9 +314,9 @@ class GPTNeoXLanguageGenerationTest(unittest.TestCase):
             model.to(torch_device)
 
             inputs = tokenizer("My favorite food is", return_tensors="pt").to(torch_device)
-            expected_output = (
-                "My favorite food is the chicken and rice.\n\nI love to cook and bake. I love to cook and bake"
-            )
+            # The hub repo. is updated on 2023-04-04, resulting in poor outputs.
+            # See: https://github.com/huggingface/transformers/pull/24193
+            expected_output = "My favorite food is a good old-fashioned, old-fashioned, old-fashioned.\n\nI'm not sure"
 
             output_ids = model.generate(**inputs, do_sample=False, max_new_tokens=20)
             output_str = tokenizer.batch_decode(output_ids)[0]