Address edge case

Author: ndodda-amazon

tests/integ/test_debugger.py

@@ -749,7 +749,7 @@ def test_mxnet_with_debugger_hook_config_disabled(
         job_description = mx.latest_training_job.describe()
 
         assert job_description.get("DebugHookConfig") is None
-        assert job_description.get("Environment", {}).get("USE_SMDEBUG") == "0"
+        assert job_description.get("Environment", {}).get(DEBUGGER_FLAG) == "0"
 
 
 def _get_rule_evaluation_statuses(job_description):