Automatic merge from submit-queue test: update replica set e2e test Should reduce the flakiness for https://github.com/kubernetes/kubernetes/issues/30981, https://github.com/kubernetes/kubernetes/issues/36429, and https://github.com/kubernetes/kubernetes/issues/32023 by reducing the replicas from 2 to 1 and also make the test failure clearer. @kubernetes/sig-apps-test-failures