Update CsmForConditionalGenerationIntegrationTest (#38424)

* require_read_token

* ruff

---------

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

tests/models/csm/test_modeling_csm.py

@@ -30,6 +30,7 @@ from transformers import (
 )
 from transformers.testing_utils import (
     cleanup,
+    require_read_token,
     require_torch_accelerator,
     slow,
     torch_device,
@@ -414,6 +415,7 @@ class CsmForConditionalGenerationTest(ModelTesterMixin, GenerationTesterMixin, u
         return input_ids, position_ids, input_ids_shared_prefix, mask_shared_prefix, position_ids_shared_prefix
 
 
+@require_read_token
 class CsmForConditionalGenerationIntegrationTest(unittest.TestCase):
     def setUp(self):
         # TODO: @eustlb, update with correct sesame's repo