feat: deploy AWS Load Balancer controller in EKS clusters

[dkoshkin]

What problem does this PR solve?:
Add support for deploying https://kubernetes-sigs.github.io/aws-load-balancer-controller/latest/.
While we work on finalizing the API, the handler will always deploy the controller in EKS clusters.

Which issue(s) this PR fixes:
Fixes #

How Has This Been Tested?:

Deployed a Deployment and Service

$ kubectl get svc
NAME                                                      TYPE           CLUSTER-IP     EXTERNAL-IP                                                                   PORT(S)        AGE
cluster-autoscaler-0199bac8-d50f-7889-bbd8-fab1f853bd7c   ClusterIP      172.20.53.99   <none>                                                                        8085/TCP       22m
kubernetes                                                ClusterIP      172.20.0.1     <none>                                                                        443/TCP        24m
test-app                                                  LoadBalancer   172.20.90.40   k8s-default-testapp-038ab69da9-08a89fe0eeadfd48.elb.us-west-2.amazonaws.com   80:30577/TCP   3m50s

$ curl http://k8s-default-testapp-038ab69da9-08a89fe0eeadfd48.elb.us-west-2.amazonaws.com
NOW: 2025-10-06 19:01:55.459707791 +0000 UTC m=+234.997554945

apiVersion: apps/v1
kind: Deployment
metadata:
  name: test-app
  namespace: default
spec:
  replicas: 1
  selector:
    matchLabels:
      app: test-app
  template:
    metadata:
      labels:
        app: test-app
    spec:
      containers:
      - name: test-app
        image: k8s.gcr.io/e2e-test-images/agnhost:2.33
        args:
        - netexec
        - --http-port=8080
        ports:
        - name: http
          containerPort: 8080
---
apiVersion: v1
kind: Service
metadata:
  name: test-app
  namespace: default
  annotations:
    service.beta.kubernetes.io/aws-load-balancer-scheme: internal
spec:
  type: LoadBalancer
  selector:
    app: test-app
  ports:
  - name: http
    port: 80
    protocol: TCP
    targetPort: 8080
  loadBalancerClass: service.k8s.aws/nlb

Special notes for your reviewer: