[Website]: ES Rest APIs Autoscaling links broke

[stefnestor]

Type of issue

None

What documentation page is affected

https://www.elastic.co/docs/reference/elasticsearch/rest-apis/

What happened?

👋 howdy, team! These links all HTTP 404

Additional info

No response

[lcawl]

This seems to be intentional per elastic/elasticsearch-specification#5235
Therefore the action item seems to be to update the links from the narrative docs and add redirects.