Add ELB and ECR image to the EKS cluster deployment

**Motivation**
Currently, we don't have visibility on whether we generate findings for the AWS-related fetchers (ELB/ECR) in the `cis_eks` benchmark.
When our terraform deployment creates the EKS cluster, it does not configure a Load balancer, and the agent image is not pulled from ECR, as a result, findings for ELB and ECR are not being generated.
For example, our long-running env doesn't produce those findings and might cause us to miss degradations in those areas.

**Definition of done**
As part of our terraform deployment:
- [ ] Push an updated image of the agent to a public ECR.
- [ ] Create the EKS cluster with an LB