Merge pull request #5463 from AkihiroSuda/containerd-2.0 #17

Job	Run time
prepare	1s
test / prepare	7m 41s
test / run (containerd, ./frontend/dockerfile, integration)	5m 30s
test / run (containerd, ./frontend/dockerfile, dockerfile)	7m 3s
test / run (containerd-rootless, ./frontend/dockerfile, integration)	4m 55s
test / run (containerd-rootless, ./frontend/dockerfile, dockerfile)	6m 39s
test / run (containerd-1.6, ./frontend/dockerfile, integration)	4m 53s
test / run (containerd-1.6, ./frontend/dockerfile, dockerfile)	7m 13s
test / run (containerd-1.7, ./frontend/dockerfile, integration)	5m 45s
test / run (containerd-1.7, ./frontend/dockerfile, dockerfile)	6m 52s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, integration)	5m 32s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	7m 31s
test / run (oci, ./frontend/dockerfile, integration)	4m 27s
test / run (oci, ./frontend/dockerfile, dockerfile)	5m 56s
test / run (oci-rootless, ./frontend/dockerfile, integration)	4m 28s
test / run (oci-rootless, ./frontend/dockerfile, dockerfile)	6m 30s
test / run (oci-rootless-slirp4netns-detachnetns, ./frontend/dockerfile, integration)	4m 22s
test / run (oci-rootless-slirp4netns-detachnetns, ./frontend/dockerfile, dockerfile)	5m 40s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, integration)	5m 4s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	6m 48s
image (mainline)	5m 0s
image (labs)	4m 59s
scout	0s
release	0s
	2h 2m 49s

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