fix: avoid exception on python3.10

aip_trainer/utils/typing_hints.py

@@ -1,10 +1,10 @@
-from typing import Annotated, Optional
+from typing import Annotated, Optional, TypeAlias
 from pydantic import BaseModel
 
 import annotated_types
 
 
-type Category = Annotated[int, annotated_types.Ge(0), annotated_types.Le(4)]
+Category: TypeAlias = Annotated[int, annotated_types.Ge(0), annotated_types.Le(4)]
 
 
 class BodyGetSampleRequest(BaseModel):