Fix timeout when defragmenting etcd on startup #8641

Job	Run time
build / Build	6m 38s
Integration Tests (certrotation)	1m 17s
Integration Tests (cacertrotation)	1m 18s
Integration Tests (etcdrestore)	1m 39s
Integration Tests (localstorage)	1m 3s
Integration Tests (startup)	6m 41s
Integration Tests (custometcdargs)	26s
Integration Tests (etcdsnapshot)	7m 14s
Integration Tests (kubeflags)	6m 19s
Integration Tests (longhorn)	2m 34s
Integration Tests (secretsencryption)	2m 22s
Integration Tests (flannelnone)	1m 7s
	38m 38s

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