[WIP] testing updated snapshotters #5317

Job	Run time
prepare	1s
test / prepare	2m 11s
test / run (containerd, ./frontend/dockerfile, integration)	16m 54s
test / run (containerd, ./frontend/dockerfile, dockerfile)	19m 27s
test / run (containerd-rootless, ./frontend/dockerfile, integration)	18m 1s
test / run (containerd-rootless, ./frontend/dockerfile, dockerfile)	19m 27s
test / run (containerd-1.6, ./frontend/dockerfile, integration)	16m 49s
test / run (containerd-1.6, ./frontend/dockerfile, dockerfile)	14m 35s
test / run (containerd-1.7, ./frontend/dockerfile, integration)	16m 25s
test / run (containerd-1.7, ./frontend/dockerfile, dockerfile)	18m 35s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, integration)	12m 5s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	26m 18s
test / run (oci, ./frontend/dockerfile, integration)	10m 38s
test / run (oci, ./frontend/dockerfile, dockerfile)	24m 56s
test / run (oci-rootless, ./frontend/dockerfile, integration)	9m 50s
test / run (oci-rootless, ./frontend/dockerfile, dockerfile)	19m 35s
test / run (oci-rootless-slirp4netns-detachnetns, ./frontend/dockerfile, integration)	15m 6s
test / run (oci-rootless-slirp4netns-detachnetns, ./frontend/dockerfile, dockerfile)	16m 31s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, integration)	11m 19s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	26m 39s
image	0s
release	0s
scout	0s
	5h 15m 22s

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