Provide guidance on minimal permissions needed for EC2 autoscaling
What does this MR do?
This documentation MR updates the docs on AWS credentials and auto-scaling Runners to account for what we learned in #27839.
Why was this MR needed?
This MR is needed to correct the docs to account for the information in this comment.
What's the best way to test this MR?
What are the relevant issue numbers?
Edited by Brie Carranza