Migrate to gateway api

[akagami-harsh]

Pull Request Template for Kubeflow Manifests

✏️ Summary of Changes

• added gateway api crds
• modified synchronize scripts to gateway api crds
• Updated Gateway definitions in kf-istio-resources.yaml and gateway.yaml to use Gateway API format

📦 Dependencies

List any dependencies or related PRs (e.g., "Depends on #123").

🐛 Related Issues

• Istio: Gateway API, seccomp value, native sidecars, new registry #2958

✅ Contributor Checklist

• I have tested these changes with kustomize. See Installation Prerequisites.
• All commits are signed-off to satisfy the DCO check.

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[juliusvonkohout]

Please cross check with the istio ambient issue to get useful architecture information.

[juliusvonkohout]

This one #2676
CC also @kimwnasptd

[juliusvonkohout]

@akagami-harsh please rebase to master. We should also try to unify istio and istio-cni such that there is less code duplication @madmecodes. Maybe you can work together here.

[madmecodes]

Okay, i will collaborate with @akagami-harsh

[juliusvonkohout]

Please do a proper rebase to master. It should only change the files necessary for the PR with the minimal amount of commits.

[juliusvonkohout]

Do you mind squashing your 26 commits ?

[juliusvonkohout]

And to clarify, kubeflow/pipelines#11965 has a higher priority

[akagami-harsh]

Do you mind squashing your 26 commits ?

I'll squash the commits once the PR is ready for final review.

And to clarify, kubeflow/pipelines#11965 has a higher priority

Got it — I'll shift my focus to the SeaweedFS PR and pause work on this one for now, it still needs further refinement.