add annotation for gc to cleanup loadbalancers and security groups

[bdehri]

What this PR does / why we need it

This PR adds an annotation for garbage collector to cleanup load-balancer resources created in the same VPC as the cluster.

Towards https://github.com/giantswarm/adidas/issues/1237

Checklist

• Updated CHANGELOG.md.

Trigger E2E tests

/run cluster-test-suites

[bdehri]

/run cluster-test-suites

[bdehri]

/run cluster-test-suites

[github-actions]

There were differences in the rendered Helm template, please check! ⚠️

Output

=== Differences when rendered with values file helm/cluster-aws/ci/test-mc-proxy-values.yaml ===

/metadata/annotations  (infrastructure.cluster.x-k8s.io/v1beta2/AWSCluster/org-giantswarm/test-mc-proxy)
  + one map entry added:
    aws.cluster.x-k8s.io/external-resource-tasks-gc: "load-balancer,security-group"
    
  



=== Differences when rendered with values file helm/cluster-aws/ci/test-network-topology-values.yaml ===

/metadata/annotations  (infrastructure.cluster.x-k8s.io/v1beta2/AWSCluster/org-giantswarm/test-wc-minimal)
  + one map entry added:
    aws.cluster.x-k8s.io/external-resource-tasks-gc: "load-balancer,security-group"
    
  



=== Differences when rendered with values file helm/cluster-aws/ci/test-wc-minimal-values.yaml ===

/metadata/annotations  (infrastructure.cluster.x-k8s.io/v1beta2/AWSCluster/org-giantswarm/test-wc-minimal)
  + one map entry added:
    aws.cluster.x-k8s.io/external-resource-tasks-gc: "load-balancer,security-group"
    
  

[bdehri]

/run cluster-test-suites

[tinkerers-ci]

cluster-test-suites

Run name	pr-cluster-aws-593-cluster-test-suites586dx
Commit SHA	ad8a023
Result	Succeeded ✅

📋 View full results in Tekton Dashboard

Rerun trigger:
/run cluster-test-suites