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Hey everyone! I was looking over the docstring in the <https://prefecthq.github.io/prefect-aws/ecs_worker/|ECS worker>, and noticed you can specify the `launch_type` to be `EC2`. This is great, because we've got _heavy_ flows that just chew up memory, and Fargate is limited to 120GB. AWS has ec2 instances in the r8* family going up to 1.5TB in size, and I'd like to see if I can tell the workers to spin up something like an <https://instances.vantage.sh/aws/ec2/r8g.8xlarge|r8g.8xlarge> instead of fargate. I can see how to specify the CPU and memory, but is there a way to specify the instance name/family/type?