[WIP] nerdctl: update to v2.0.0 (rc)

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

pkg/limayaml/defaults.go

@@ -69,20 +69,20 @@ func defaultCPUType() CPUType {
 }
 
 func defaultContainerdArchives() []File {
-	const nerdctlVersion = "1.7.6"
+	const nerdctlVersion = "2.0.0-rc.0"
 	location := func(goos string, goarch string) string {
 		return "https://github.com/containerd/nerdctl/releases/download/v" + nerdctlVersion + "/nerdctl-full-" + nerdctlVersion + "-" + goos + "-" + goarch + ".tar.gz"
 	}
 	return []File{
 		{
 			Location: location("linux", "amd64"),
 			Arch:     X8664,
-			Digest:   "sha256:2c841e097fcfb5a1760bd354b3778cb695b44cd01f9f271c17507dc4a0b25606",
+			Digest:   "", // WIP
 		},
 		{
 			Location: location("linux", "arm64"),
 			Arch:     AARCH64,
-			Digest:   "sha256:77c747f09853ee3d229d77e8de0dd3c85622537d82be57433dc1fca4493bab95",
+			Digest:   "", // WIP
 		},
 		// No arm-v7
 		// No riscv64