Auto import images for containerd image store #8655

Job	Run time
build / Build	6m 37s
Integration Tests (certrotation)	1m 23s
Integration Tests (cacertrotation)	1m 18s
Integration Tests (etcdrestore)	1m 24s
Integration Tests (localstorage)	1m 7s
Integration Tests (startup)	6m 29s
Integration Tests (custometcdargs)	27s
Integration Tests (etcdsnapshot)	7m 10s
Integration Tests (kubeflags)	6m 24s
Integration Tests (longhorn)	2m 13s
Integration Tests (secretsencryption)	2m 3s
Integration Tests (flannelnone)	1m 1s
	37m 36s

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