feature: support displayName and description for pipeline steps

Author: jayatalr

src/sagemaker/workflow/lambda_step.py

@@ -105,7 +105,7 @@ def __init__(
             depends_on (List[str]): A list of step names this `sagemaker.workflow.steps.LambdaStep`
                 depends on
         """
-        super(LambdaStep, self).__init__(name,display_name, description, StepTypeEnum.LAMBDA, depends_on)
+        super(LambdaStep, self).__init__(name, display_name, description, StepTypeEnum.LAMBDA, depends_on)
         self.lambda_func = lambda_func
         self.outputs = outputs if outputs is not None else []
         self.cache_config = cache_config

tests/unit/sagemaker/workflow/test_lambda_step.py

@@ -48,7 +48,8 @@ def test_lambda_step(sagemaker_session):
             function_arn="arn:aws:lambda:us-west-2:123456789012:function:sagemaker_test_lambda",
             session=sagemaker_session,
         ),
-        display_name="MyLambdaStep", description="MyLambdaStepDescription",
+        display_name="MyLambdaStep",
+        description="MyLambdaStepDescription",
         inputs={"arg1": "foo", "arg2": 5, "arg3": param},
         outputs=[outputParam1, outputParam2],
     )