fix(train): Skip default instance_type/instance_count when instance_groups is set#5564

mollyheamazon merged 1 commit intoaws:masteraws/sagemaker-python-sdk:masterfrom

mufaddal-rohawala:fix/heterogeneous-cluster-defaultsmufaddal-rohawala/sagemaker-python-sdk:fix/heterogeneous-cluster-defaultsCopy head branch name to clipboard