test: PyTorchProcessor integ needs py_version

Fix an integ test failure in test_processing.py by providing
appropriate py_version parameter to PyTorchProcessor. Check that all
test PyTorchProcessor instantiations now provide this param.

Author: athewsey

tests/integ/test_workflow.py

@@ -525,6 +525,7 @@ def test_one_step_framework_processing_pipeline(
     sagemaker_session,
     role,
     pytorch_training_latest_version,
+    pytorch_training_latest_py_version,
     cpu_instance_type,
     pipeline_name,
     region_name,
@@ -544,6 +545,7 @@ def test_one_step_framework_processing_pipeline(
 
     processor = PyTorchProcessor(
         framework_version=pytorch_training_latest_version,
+        py_version=pytorch_training_latest_py_version,
         role=role,
         instance_type=cpu_instance_type,
         instance_count=instance_count,