change status error code when login fails from 400 (bad request) to 401 (unauthorized)

fastapi/auth.py

@@ -78,7 +78,7 @@ def authenticate_user(db: Session, email: str, password: str):
 def login_user(db, email: str, password: str):
     user = authenticate_user(db, email, password)
     if not user:
-        raise HTTPException(status_code=400, detail="Incorrect username or password")
+        raise HTTPException(status_code=401, detail="Incorrect username or password")
     access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
     access_token = create_access_token(
         data={"sub": user.email, "role": user.role, "id": user.id},