Fix e2e ingress IP helper #9305

Job	Run time
build / Build	7m 5s
build / Build (windows)	7m 28s
Integration Tests (certrotation)	1m 22s
Integration Tests (cacertrotation)	1m 32s
Integration Tests (etcdrestore)	1m 43s
Integration Tests (localstorage)	1m 26s
Integration Tests (startup)	6m 21s
Integration Tests (custometcdargs)	31s
Integration Tests (etcdsnapshot)	7m 33s
Integration Tests (kubeflags)	6m 33s
Integration Tests (longhorn)	2m 43s
Integration Tests (secretsencryption)	1m 50s
Integration Tests (flannelnone)	1m 1s
	47m 8s

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