Migrate to in-toto v1 #1867

Job	Run time
prepare	5s
test / prepare	2m 56s
binaries (darwin/amd64)	1m 22s
binaries (darwin/arm64)	1m 28s
binaries (linux/amd64)	3m 11s
binaries (linux/arm/v7)	3m 31s
binaries (linux/arm64)	2m 52s
binaries (linux/s390x)	2m 53s
binaries (linux/ppc64le)	3m 0s
binaries (linux/riscv64)	3m 8s
binaries (windows/amd64)	1m 18s
binaries (windows/arm64)	1m 36s
test / run (containerd, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, integration)	5m 3s
test / run (containerd-rootless, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, integr...	4m 58s
test / run (containerd-1.6, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, integration)	4m 55s
test / run (containerd-snapshotter-stargz, ./client ./cmd/buildctl ./worker/containerd ./solver ./fronte...	4m 49s
test / run (oci, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, integration)	5m 22s
test / run (oci-rootless, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, integration)	6m 34s
test / run (oci-snapshotter-stargz, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, int...	6m 6s
test / run (./..., 1, integration gateway)	7m 11s
test / run (./client, containerd, nydus, integration)	3m 57s
test / run (./client, oci, nydus, integration)	4m 48s
test / run (./..., nydus, 1, integration)	6m 52s
image	0s
release	0s
	1h 27m 55s

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