fix pylint errors

backend/tests/conftest.py

@@ -1,13 +1,13 @@
 import pytest
 from fastapi.testclient import TestClient
-from sqlmodel import SQLModel, Session, create_engine
 from sqlalchemy.pool import StaticPool
+from sqlmodel import Session, SQLModel, create_engine
+from src import models
+from src.auth.auth import get_current_user
+from src.database import get_session
+from src.main import app
 
 from .fixtures import *
-from src.main import app
-import src.models as models
-from src.database import get_session
-from src.auth.auth import get_current_user
 
 
 @pytest.fixture