Reduce the number of GH api request for E2E nightly #8612

Job	Run time
build / Build	6m 45s
Integration Tests (certrotation)	2m 3s
Integration Tests (cacertrotation)	1m 50s
Integration Tests (etcdrestore)	2m 6s
Integration Tests (localstorage)	1m 39s
Integration Tests (startup)	6m 47s
Integration Tests (custometcdargs)	1m 1s
Integration Tests (etcdsnapshot)	7m 50s
Integration Tests (kubeflags)	7m 32s
Integration Tests (longhorn)	3m 5s
Integration Tests (secretsencryption)	2m 24s
Integration Tests (flannelnone)	1m 52s
	44m 54s

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