Aws Recommended Instances

When operating in AWS, we recommend the following instances: | EC2 Instances | | ---------------| | r8g, r7g, and r6g families when running without local disk. | | r7gd and r6gd families (and r8gd once available) when running with local disk. *Recommended for production.* | Starting in v0.3.1, the Materialize on AWS Terraform uses ["r7gd.2xlarge"] as the default [node_group_instance_types]. [node_group_instance_types]: https://github.com/MaterializeInc/terraform-aws-materialize?tab=readme-ov-file#input\_node\_group\_instance\_types