Fix accelerate logger bug (#23650)

* fix logger bug

* Update tests/mixed_int8/test_mixed_int8.py

Co-authored-by: Zachary Mueller <muellerzr@gmail.com>

* import `PartialState`

---------

Co-authored-by: Zachary Mueller <muellerzr@gmail.com>

tests/mixed_int8/test_mixed_int8.py

@@ -29,6 +29,7 @@ from transformers import (
     pipeline,
 )
 from transformers.testing_utils import (
+    is_accelerate_available,
     is_torch_available,
     require_accelerate,
     require_bitsandbytes,
@@ -40,6 +41,13 @@ from transformers.testing_utils import (
 from transformers.utils.versions import importlib_metadata
 
 
+if is_accelerate_available():
+    from accelerate import PartialState
+    from accelerate.logging import get_logger
+
+    logger = get_logger(__name__)
+    _ = PartialState()
+
 if is_torch_available():
     import torch
     import torch.nn as nn