Update _compat.py

Author: stickm4n

sqlmodel/_compat.py

@@ -29,6 +29,7 @@
 PYDANTIC_MINOR_VERSION = tuple(int(i) for i in P_VERSION.split(".")[:2])
 IS_PYDANTIC_V2 = PYDANTIC_MINOR_VERSION[0] == 2
 
+
 if TYPE_CHECKING:
     from .main import RelationshipInfo, SQLModel
 
@@ -72,7 +73,6 @@ def partial_init() -> Generator[None, None, None]:
     finish_init.reset(token)
 
 
-
 if IS_PYDANTIC_V2:
     from annotated_types import MaxLen
     from pydantic import ConfigDict as BaseConfig