[deps] goodbye python 3.9 (#9677)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: hiyouga <16256802+hiyouga@users.noreply.github.com>
Co-authored-by: hiyouga <hiyouga@buaa.edu.cn>

src/llamafactory/extras/constants.py

@@ -15,7 +15,6 @@
 import os
 from collections import OrderedDict, defaultdict
 from enum import Enum, unique
-from typing import Optional
 
 from peft.utils import SAFETENSORS_WEIGHTS_NAME as SAFE_ADAPTER_WEIGHTS_NAME
 from peft.utils import WEIGHTS_NAME as ADAPTER_WEIGHTS_NAME
@@ -154,7 +153,7 @@ class RopeScaling(str, Enum):
 
 def register_model_group(
     models: dict[str, dict[DownloadSource, str]],
-    template: Optional[str] = None,
+    template: str | None = None,
     multimodal: bool = False,
 ) -> None:
     for name, path in models.items():

src/llamafactory/extras/logging.py

@@ -117,7 +117,7 @@ def _configure_library_root_logger() -> None:
         library_root_logger.propagate = False
 
 
-def get_logger(name: Optional[str] = None) -> "_Logger":
+def get_logger(name: str | None = None) -> "_Logger":
     r"""Return a logger with the specified name. It it not supposed to be accessed externally."""
     if name is None:
         name = _get_library_name()