Fix common/istio-cni-1-17/cluster-local-gateway/base kustomize warnings

[AndersBennedsgaard]

Which issue is resolved by this Pull Request:

Related to #2388

Description of your changes:

Fix Kustomize v5 warnings for common/istio-cni-1-17/cluster-local-gateway/base
kustomize build generates no changes between old and new version.

Checklist:

• Unit tests pass:
  Make sure you have installed kustomize == 5.0.3
  1. make generate-changed-only
  2. make test

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This pull-request has been approved by: AndersBennedsgaard
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[juliusvonkohout]

@AndersBennedsgaard Please merge those 4 PRs into a single one, close the old ones and tag me. Then i can merge.

[AndersBennedsgaard]

Closed in favor of #2653