fix enable_logprob not in rl_config (#2808)

fastdeploy/rl/rollout_config.py

@@ -58,6 +58,7 @@ class RolloutModelConfig:
         max_capture_batch_size: int = 64,
         guided_decoding_backend: str = "off",
         disable_any_whitespace: bool = True,
+        enable_logprob: bool = False,
     ):
         # Required parameters
         self.model_name_or_path = model_name_or_path
@@ -99,6 +100,7 @@ class RolloutModelConfig:
         self.max_capture_batch_size = max_capture_batch_size
         self.guided_decoding_backend = guided_decoding_backend
         self.disable_any_whitespace = disable_any_whitespace
+        self.enable_logprob = enable_logprob
 
     def __str__(self):
         return "\n".join(f"{k}: {v}" for k, v in self.__dict__.items())