fix(utils.py): fix python 3.8 linting error

litellm/utils.py

@@ -43,10 +43,8 @@ try:
     # New and recommended way to access resources
     from importlib import resources
 
-    filename = str(
-        resources.files(litellm).joinpath("llms/tokenizers")
-    )
-except ImportError:
+    filename = str(resources.files(litellm).joinpath("llms/tokenizers"))
+except (ImportError, AttributeError):
     # Old way to access resources, which setuptools deprecated some time ago
     import pkg_resources  # type: ignore