4.2 Create CI IAM user

Create an IAM user for GitHub Actions

Go to IAM -> Users -> Create user:

1. User name: github-actions.

2. Attach policies directly, attach two policies:

   Policy	Purpose
   AmazonEC2ContainerRegistryFullAccess	Push/pull images to ECR
   AmazonEKSClusterPolicy	EKS access to the registry

3. Create user -> Security credentials -> Create access key -> CLI -> Download .csv.