Firebase Cloud Messaging API is deprecated but Amplify docs still lets users to choose that

**Describe the content issue**:
A clear and concise description of what the content issue is. Is there content missing or is there incorrect content?

The way document says is deprecated.

According to Google, Cloud Messaging API will be stopped on next June, but document below still lets users to choose old way to use amplify push notification service.

I know Amazon SNS now supports Firebase HTTP v1 API, but I'm not sure about Amplify.
Are there any announcement?
Anyway I think document should be updated.

**URL page where content issue is**:
https://docs.amplify.aws/react-native/build-a-backend/push-notifications/set-up-push-service/