Fix kustomize 5 warning for /common/istio-1-16/istio-install/

[annajung]

Part of #2388 to support kustomize 5 without warnings. Fix the use of deprecated fields in manifests/common/istio-1-16/istio-install/

Steps To Reproduce

1. Download kustomize 5.0.0

2. Run kustomize build using version kustomize 5.0.0 to see the warning

git clone https://github.com/kubeflow/manifests.git
cd manifests/common/istio-1-16/istio-install/base
kustomize build . > tmp.yaml

Current Behavior

Step 2 produces the following warning

# Warning: 'patchesStrategicMerge' is deprecated. Please use 'patches' instead. Run 'kustomize edit fix' to update your Kustomization automatically.

Expected Behavior

Step 2 completes without a warning and produces the same yaml as before the changes

Helpful links:

• https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/replacements/
• https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/resource/
• https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/patches/

Where does the fix belong?

/common directory is managed by the Manifest WG, PR should be made to the manifests repo

/help
/good-first-issue

[google-oss-prow]

@annajung:
This request has been marked as suitable for new contributors.

Please ensure the request meets the requirements listed here.

If this request no longer meets these requirements, the label can be removed
by commenting with the /remove-good-first-issue command.

In response to this:

Part of #2388 to support kustomize 5. Fix the use of deprecated fields in manifests/common/istio-1-16/istio-install/

Steps To Reproduce

1. Download kustomize 5.0.0

2. Run kustomize build using version kustomize 5.0.0 to see the warning

git clone https://github.com/kubeflow/manifests.git
cd manifests/common/istio-1-16/istio-install/base
kustomize build . > tmp.yaml

Current Behavior

Step 2 produces the following warning

# Warning: 'patchesStrategicMerge' is deprecated. Please use 'patches' instead. Run 'kustomize edit fix' to update your Kustomization automatically.

Expected Behavior

Step 2 completes without a warning and produces the same yaml as before the changes

/help
/good-first-issue

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[annajung]

/triage accepted

[google-oss-prow]

@annajung: The label(s) triage/accepted cannot be applied, because the repository doesn't have them.

In response to this:

/triage accepted

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[juliusvonkohout]

We should rather delete 1.16 and check 1.17

[juliusvonkohout]

But let us merge #2455 first. Afterwards just ping me and i can fix it.

[juliusvonkohout]

/assign @juliusvonkohout

[juliusvonkohout]

Fixed by #2537 . Please review