v1.39.0

Features

• Estimator.fit like logs for transformer
• handler for stopping transform job

Bug fixes and other changes

• remove hardcoded creds from integ test
• remove hardcoded creds from integ test
• Fix get_image_uri warning log for default xgboost version.
• add enable_network_isolation to generic Estimator class
• use regional endpoint when creating AWS STS client
• update Sagemaker Neo regions
• use cpu_instance_type fixture for stop_transform_job test
• hyperparameter tuning with spot instances and checkpoints
• skip efs and fsx integ tests in all regions

Documentation changes

• clarify some Local Mode limitations