Merge pull request #5378 from crazy-max/history-prune-orphans #4467

Job	Run time
prepare	2s
test / prepare	5m 39s
test / run (containerd, ./frontend/dockerfile, integration)	5m 10s
test / run (containerd, ./frontend/dockerfile, dockerfile)	6m 54s
test / run (containerd-rootless, ./frontend/dockerfile, integration)	4m 40s
test / run (containerd-rootless, ./frontend/dockerfile, dockerfile)	6m 22s
test / run (containerd-1.6, ./frontend/dockerfile, integration)	4m 35s
test / run (containerd-1.6, ./frontend/dockerfile, dockerfile)	6m 21s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, integration)	5m 52s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	8m 32s
test / run (oci, ./frontend/dockerfile, integration)	4m 14s
test / run (oci, ./frontend/dockerfile, dockerfile)	5m 27s
test / run (oci-rootless, ./frontend/dockerfile, integration)	4m 40s
test / run (oci-rootless, ./frontend/dockerfile, dockerfile)	6m 0s
test / run (oci-rootless-slirp4netns-detachnetns, ./frontend/dockerfile, integration)	4m 53s
test / run (oci-rootless-slirp4netns-detachnetns, ./frontend/dockerfile, dockerfile)	5m 54s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, integration)	4m 11s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	5m 31s
image (mainline)	5m 0s
image (labs)	5m 3s
scout (master)	24s
scout (master-labs)	31s
release	0s
	1h 45m 55s

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