Fix ValidationError import deprecation warning

Author: YuriiMotov

tests/test_validation.py

@@ -1,7 +1,7 @@
 from typing import Optional
 
 import pytest
-from pydantic.error_wrappers import ValidationError
+from pydantic import ValidationError
 from sqlmodel import SQLModel
 
 from .conftest import needs_pydanticv1, needs_pydanticv2