Change hint message for field-choices-constraint

`check=` was deprecated in Django5.1
See https://github.com/django/django/blob/55855bc6d0d2a270eb34952c578ee352389367ad/django/db/models/constraints.py#L165-L170

Author: sobolevn

src/extra_checks/checks/model_field_checks.py

@@ -308,6 +308,6 @@ def apply(
             check = f'models.Q({in_name}=[{", ".join([self._repr_choice(c) for c in field_choices])}])'
             yield self.message(
                 "Field with choices must have companion CheckConstraint to enforce choices on database level.",
-                hint=f'Add to Meta.constraints: `models.CheckConstraint(name="%(app_label)s_%(class)s_{field.name}_valid", check={check})`',
+                hint=f'Add to Meta.constraints: `models.CheckConstraint(name="%(app_label)s_%(class)s_{field.name}_valid", condition={check})`',
                 obj=field,
             )