Fix racy ProxyStatus tests (#29002)
Fix racy ProxyStatus tests (#29002)

Example failure
https://prow.istio.io/view/gs/istio-prow/logs/integ-pilot-k8s-tests_istio_postsubmit/1328973466551980032

There is a race here if anything in the cluster changes at the same
moment the test runs, they may be out of sync. This is not a bug.
istio/istio,istio/istio,istio/istio,istio/istio,istio/istio