Easy solution: draw your cartoon of Africans in Africa in traditional Laplander garb.
Indeed, all indigenous people’s should be portrayed in cartoons in Laplander garb.
No one will care if it’s cultural malappropriation of Laplandish culture because they are white.
But the Sami are a minority and are protected under the international conventions of indigenous peoples.
The UN will send you a sternly worded letter.