Fix default CePO config yaml

Author: erich-cerebras

configs/cepo_config.yaml

@@ -1,14 +1,14 @@
-bestofn_n: 4
-bestofn_temperature: 0.2324214
+bestofn_n: 3
+bestofn_temperature: 0.1
 bestofn_max_tokens: 4096
 bestofn_rating_type: "absolute"  # or "pairwise"
-planning_n: 2
-planning_m: 2
-planning_temperature_step1: 0.00055
+planning_n: 3
+planning_m: 6
+planning_temperature_step1: 0.55
 planning_temperature_step2: 0.25
-planning_temperature_step3: 0.999
-planning_temperature_step4: 1.2
-planning_max_tokens_step1: 96
-planning_max_tokens_step2: 2
-planning_max_tokens_step3: 8000
-planning_max_tokens_step4: 0
+planning_temperature_step3: 0.1
+planning_temperature_step4: 0
+planning_max_tokens_step1: 4096
+planning_max_tokens_step2: 4096
+planning_max_tokens_step3: 4096
+planning_max_tokens_step4: 4096