sagemaker.user/created-by label value exceeding max length

[giuseppeporcelli]

When the user role name is exceeding 63 characters, which is the max length for a Kubernetes label, the helm install command executed by the launcher will fail.

The value should be trimmed. Also, when the helm install operation fails in the launcher, no logs are emitted by the HyperPod CLI.

[zhaoqizqwang]

Closing this issue since fix has been merged. Opened a separate issue to track error message: #84