fix: Update Ec2 instance type to g5.4xlarge in test_huggingface_torch_distributed.py (#4181)

This change updates the EC2 instance in the test because g5.8xlarge has lower capacity and frequently throws Capacity errors in us-west-2 region.

Author: goelakash

tests/integ/test_huggingface_torch_distributed.py

@@ -32,7 +32,7 @@ def test_huggingface_torch_distributed_g5_glue(
             transformers_version=huggingface_training_latest_version,
             pytorch_version=huggingface_training_pytorch_latest_version,
             instance_count=1,
-            instance_type="ml.g5.8xlarge",
+            instance_type="ml.g5.4xlarge",
             hyperparameters={
                 "model_name_or_path": "distilbert-base-cased",
                 "task_name": "wnli",