fix: duplicated CRD in helm kustomization

[wweiwei-li]

Issue

#4517

Description

Issue: The globalaccelerators.aga.k8s.aws CRD is duplicated in the Helm chart

Included in crds.yaml
Also listed separately in aga-crds.yaml
Both referenced in crds/kustomization.yaml
Impact:
✅ Direct Helm users: No impact - helm install and helm upgrade work normally.
❌ Kustomize/ArgoCD users with includeCRDs: true : Deployment fails with duplicate resource error.

This fix is to remove aga-crds.yaml from kustomization.yaml
-->

Checklist

• Added tests that cover your change (if possible)
• Added/modified documentation as required (such as the README.md, or the docs directory)
• Manually tested
• Made sure the title of the PR is a good description that can go into the release notes

BONUS POINTS checklist: complete for good vibes and maybe prizes?! 🤯

• Backfilled missing tests for code in same general area 🎉
• Refactored something and made the world a better place 🌟

[k8s-ci-robot]

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[shuqz]

we have

	$(KUSTOMIZE) build config/crd/gateway > config/crd/gateway/gateway-crds.yaml
	echo '---' > config/crd/gateway/gateway-crds.yaml
	$(KUSTOMIZE) build config/crd/gateway >> config/crd/gateway/gateway-crds.yaml
$(COPY_GATEWAY_CRDS_TO_HELM)

for gateway api because we want to separate out gateway api crds into its own directory. now since want to consider aga at same level as bases, i am wondering should we move aga crd definitions to /bases instead of /aga

[wweiwei-li]

Yeah, good question. I was debating. but I am thinking just keep it as it is, so it is in separate/aga for organization, but included by default in https://github.com/kubernetes-sigs/aws-load-balancer-controller/blob/main/config/crd/kustomization.yaml (like bases)

resources:
  - bases/elbv2.k8s.aws_targetgroupbindings.yaml
  - bases/elbv2.k8s.aws_ingressclassparams.yaml
  - bases/elbv2.k8s.aws_albtargetcontrolconfigs.yaml
  - aga/aga-crds.yaml

[shraddhabang]

/lgtm