Merge pull request #5463 from AkihiroSuda/containerd-2.0 #5442

Job	Run time
build (windows/amd64)	2m 40s
build (freebsd/amd64)	2m 25s
test-freebsd-amd64	3m 1s
test-windows-amd64 (containerd, ./client)	3m 56s
test-windows-amd64 (containerd, ./cmd/buildctl)	5m 8s
test-windows-amd64 (containerd, ./worker/containerd)	4m 40s
test-windows-amd64 (containerd, ./solver)	2m 1s
test-windows-amd64 (containerd, ./frontend)	2m 23s
test-windows-amd64 (containerd, ./frontend/dockerfile)	36m 2s
test-windows-amd64 (./..., 1)	3m 27s
	1h 5m 43s

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