Enhancement | upgrade EKS machine types

[juanmatias]

Describe the Feature

In the K8s-EKS layers, e.g. https://github.com/binbashar/le-tf-infra-aws/blob/b327a8e5b4eee60d49c01fe02e82b50594b32086/apps-devstg/us-east-1/k8s-eks/cluster/eks-managed-nodes.tf#L173-L188

...upgrade EC2 machine types to T3 family.

Expected Behavior

Use T3 family

Use Case

n/a

Describe Ideal Solution

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Alternatives Considered

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Additional Context

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