Add IFEval metrics to config metadata

config.json

@@ -12,6 +12,10 @@
   "eos_token_id": 1,
   "full_attention_interval": 4,
   "hidden_size": 1024,
+  "ifeval_inst_level_loose_acc": 0.3501199040767386,
+  "ifeval_inst_level_strict_acc": 0.328537170263789,
+  "ifeval_prompt_level_loose_acc": 0.21256931608133087,
+  "ifeval_prompt_level_strict_acc": 0.1922365988909427,
   "initializer_range": 0.02,
   "intermediate_size": 2624,
   "layer_types": [