Fix config - incorrect param name

Author: pawelf-cerebras

optillm/cepo/configs/cepo_config.yaml

@@ -16,5 +16,6 @@ planning_max_tokens_step3: 4096
 planning_max_tokens_step4: 4096
 use_plan_diversity: False
 rating_model: null
-use_reasoning_effort_fallback: False
+use_reasoning_fallback: False
+num_of_retries: 0
 print_output: False