update defaults

Author: pintaoz

hyperpod-cluster-stack-template/hyperpod_cluster_stack_template/v1_0/model.py

@@ -120,7 +120,7 @@ def to_config(self, region: str = None):
 
         # Set fixed defaults
         defaults = {
-            'custom_bucket_name': 'aws-sagemaker-hyperpod-cluster-setup',
+            'custom_bucket_name': '',
             'github_raw_url': 'https://raw.githubusercontent.com/aws-samples/awsome-distributed-training/refs/heads/main/1.architectures/7.sagemaker-hyperpod-eks/LifecycleScripts/base-config/on_create.sh',
             'helm_repo_url': 'https://github.com/aws/sagemaker-hyperpod-cli.git',
             'helm_repo_path': 'helm_chart/HyperPodHelmChart'