fix: update api to latest (aws#276)

* fix: update api
* fix: pass None experiment_config to AutoML
* fix: making endpoint_name unique in AutoML test

Author: knakad

src/sagemaker/automl/candidate_estimator.py

@@ -279,6 +279,7 @@ def _get_transform_args(self, desc, inputs, name, volume_kms_key):
         transform_args["max_concurrent_transforms"] = None
         transform_args["max_payload"] = None
         transform_args["env"] = None
+        transform_args["experiment_config"] = None
 
         input_config = desc["TransformInput"]
         input_config["DataSource"]["S3DataSource"]["S3Uri"] = inputs