Dockerfile: update runc binary to 1.1.15 #4595

Job	Run time
prepare	1s
test / prepare	1m 57s
test / run (containerd, ./frontend/dockerfile, integration)	5m 15s
test / run (containerd, ./frontend/dockerfile, dockerfile)	6m 39s
test / run (containerd-rootless, ./frontend/dockerfile, integration)	4m 33s
test / run (containerd-rootless, ./frontend/dockerfile, dockerfile)	6m 59s
test / run (containerd-1.6, ./frontend/dockerfile, integration)	4m 46s
test / run (containerd-1.6, ./frontend/dockerfile, dockerfile)	6m 29s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, integration)	4m 56s
test / run (containerd-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	7m 2s
test / run (oci, ./frontend/dockerfile, integration)	4m 27s
test / run (oci, ./frontend/dockerfile, dockerfile)	6m 21s
test / run (oci-rootless, ./frontend/dockerfile, integration)	4m 41s
test / run (oci-rootless, ./frontend/dockerfile, dockerfile)	6m 6s
test / run (oci-rootless-slirp4netns-detachnetns, ./frontend/dockerfile, integration)	4m 43s
test / run (oci-rootless-slirp4netns-detachnetns, ./frontend/dockerfile, dockerfile)	5m 33s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, integration)	4m 15s
test / run (oci-snapshotter-stargz, ./frontend/dockerfile, dockerfile)	5m 48s
image (mainline)	4m 58s
image (labs)	5m 12s
scout	0s
release	0s
	1h 40m 41s

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