fix typo

Author: JingyaHuang

tests/conftest.py

@@ -333,9 +333,9 @@ def huggingface_training_compiler_pytorch_py_version(
 def huggingface_pytorch_latest_training_py_version(
     huggingface_training_pytorch_latest_version,
 ):
-    if Version(huggingface_pytorch_training_version) >= Version("1.13"):
+    if Version(huggingface_training_pytorch_latest_version) >= Version("1.13"):
         return "py39"
-    elif Version(huggingface_pytorch_training_version) >= Version("1.9"):
+    elif Version(huggingface_training_pytorch_latest_version) >= Version("1.9"):
         return "py38"
     else:
         return "py36"