Add trust_remote_code parameter and remove True

- Introduced a new model parameter `trust_remote_code`
- Set the default value of `trust_remote_code` to `False`
  to enhance security


Former-commit-id: 4bf23f406cf5235c16f9f8139850c53354901814

src/llamafactory/eval/evaluator.py

@@ -100,7 +100,7 @@ class Evaluator:
                 cache_dir=self.model_args.cache_dir,
                 download_mode=self.eval_args.download_mode,
                 token=self.model_args.hf_hub_token,
-                trust_remote_code=True,
+                trust_remote_code=self.model_args.trust_remote_code,
             )
             pbar.set_postfix_str(categorys[subject]["name"])
             inputs, outputs, labels = [], [], []