Update training resource name in MTRL tests as previous MPG got cleanedup (#5953)

* fix:unskip and mark MTRL tests as gpu intensive

* Add Mock setup for mtrl integ tests

* Add Mock setup for mtrl integ tests

* Add Mock setup for mtrl integ tests

* Update training resource name as previous MPG got cleanedup

---------

Co-authored-by: Roja Reddy Sareddy <rsareddy@amazon.com>

Author: rsareddy0329

sagemaker-train/tests/integ/train/test_mtrl_evaluator_3p_agent.py

@@ -323,7 +323,7 @@ def test_evaluate_with_attached_trainer(self, lambda_agent_arn, test_config):
         from sagemaker.train.multi_turn_rl_trainer import MultiTurnRLTrainer
 
         attached_job = MultiTurnRLTrainer.attach(
-            "mock-oss-test-mtrl-20260615143910", session=boto3.Session(region_name=_REGION)
+            "mock-oss-test-mtrl-20260616153024", session=boto3.Session(region_name=_REGION)
         )
 
         evaluator = MultiTurnRLEvaluator(

sagemaker-train/tests/integ/train/test_mtrl_trainer_integration.py

@@ -53,7 +53,7 @@ def _get_account_id():
     "729646638167": {
         "env_name": "PROD",
         #"existing_job_name": "mock-oss-test-mtrl-20260611170946",
-        "existing_job_name": "mock-oss-test-mtrl-20260615143910",
+        "existing_job_name": "mock-oss-test-mtrl-20260616153024",
         "base_model": "mock-oss-test",
         "agent_core_arn": "arn:aws:bedrock-agentcore:us-west-2:729646638167:runtime/sagemaker_rft_prod_gsm8k_streaming-Yk6O377mUS",
         "dataset": "s3://sagemaker-rft-729646638167/prompts/gsm8k_small/prompts.parquet",

sagemaker-train/tests/integ/train/test_multi_turn_rl_trainer_integration.py

@@ -41,7 +41,7 @@ def _get_account_id():
 AGENT_RUNTIME_ID = "sagemaker_rft_prod_gsm8k_streaming-Yk6O377mUS"
 #BASE_MODEL = "openai-reasoning-gpt-oss-20b"
 BASE_MODEL = "mock-oss-test"
-EXISTING_JOB_NAME = "openai-reasoning-gpt-oss-20b-mtrl-20260602215955"
+EXISTING_JOB_NAME = "mock-oss-test-mtrl-20260616153024"
 
 
 @pytest.fixture(scope="module")