history: remove records without attached blobs at startup #4450

Job	Run time
prepare	1s
test / prepare	2m 3s
test / run (containerd, ./frontend/dockerfile, integration)	3m 51s
test / run (containerd, ./frontend/dockerfile, dockerfile)	3m 48s
test / run (containerd-rootless, ./frontend/dockerfile, integration)	3m 47s
test / run (containerd-rootless, ./frontend/dockerfile, dockerfile)	3m 57s
test / run (containerd-1.6, ./frontend/dockerfile, integration)	3m 48s
test / run (containerd-1.6, ./frontend/dockerfile, dockerfile)	3m 54s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, integration)	3m 47s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	3m 47s
test / run (oci, ./frontend/dockerfile, integration)	3m 47s
test / run (oci, ./frontend/dockerfile, dockerfile)	3m 46s
test / run (oci-rootless, ./frontend/dockerfile, integration)	3m 45s
test / run (oci-rootless, ./frontend/dockerfile, dockerfile)	3m 49s
test / run (oci-rootless-slirp4netns-detachnetns, ./frontend/dockerfile, integration)	3m 48s
test / run (oci-rootless-slirp4netns-detachnetns, ./frontend/dockerfile, dockerfile)	3m 49s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, integration)	3m 48s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	3m 19s
image	1s
release	1s
scout	1s
	1h 2m 37s

Provide feedback