fix: rename optimzer to optimizer

src/llamafactory/train/pt/trainer.py

@@ -19,7 +19,7 @@ from transformers import Trainer
 
 from ...extras.logging import get_logger
 from ..callbacks import PissaConvertCallback, SaveProcessorCallback
-from ..trainer_utils import create_custom_optimzer, create_custom_scheduler
+from ..trainer_utils import create_custom_optimizer, create_custom_scheduler
 
 
 if TYPE_CHECKING:
@@ -57,7 +57,7 @@ class CustomTrainer(Trainer):
 
     def create_optimizer(self) -> "torch.optim.Optimizer":
         if self.optimizer is None:
-            self.optimizer = create_custom_optimzer(self.model, self.args, self.finetuning_args)
+            self.optimizer = create_custom_optimizer(self.model, self.args, self.finetuning_args)
         return super().create_optimizer()
 
     def create_scheduler(