update quickstart to use istio formal version #1856
Description
recently Istio released v1.28.0 which now formally supports InferencePool v1.
we should update our quickstart guides to use that release instead of a dev branch.
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recently Istio released v1.28.0 which now formally supports InferencePool v1.
we should update our quickstart guides to use that release instead of a dev branch.