test: Add plenty of time for model download

Author: kthui

tests/fault_tolerance/test_request_migration.py

@@ -79,7 +79,7 @@ def __init__(self, request, worker_id: str):
 
         super().__init__(
             command=command,
-            timeout=120,
+            timeout=600,
             display_output=True,
             terminate_existing=False,
             log_dir=log_dir,