SA20: Fix SqlAlchemyInsertFromSelectTest

By binding the insert clause to an engine, use the "qmark" paramstyle
again, instead of falling back to the "named" paramstyle of the default
dialect.

src/crate/client/sqlalchemy/tests/insert_from_select_test.py

@@ -75,8 +75,7 @@ def test_insert_from_select_triggered(self):
  ins = insert(self.character_archived).from_select(['name', 'age'], sel)
  self.session.execute(ins)
  self.session.commit()
- # TODO: Verify if this is correct.
  self.assertSQL(
- "INSERT INTO characters_archive (name, age) SELECT characters.name, characters.age FROM characters WHERE characters.status = :status_1",
- ins
+ "INSERT INTO characters_archive (name, age) SELECT characters.name, characters.age FROM characters WHERE characters.status = ?",
+ ins.compile(bind=self.engine)
  )