vendor: cadvisor v0.39.0

Main upgrades:
- github.com/opencontainers/runc v1.0.0-rc93
- github.com/containerd/containerd v1.4.4
- github.com/docker/docker v20.10.2
- github.com/mrunalp/fileutils v0.5.0
- github.com/opencontainers/selinux v1.8.0
- github.com/cilium/ebpf v0.2.0

vendor/github.com/opencontainers/selinux/go-selinux/selinux_stub.go

@@ -1,4 +1,4 @@
-// +build !selinux !linux
+// +build !linux
 
 package selinux
 
@@ -146,3 +146,7 @@ func dupSecOpt(src string) ([]string, error) {
 func disableSecOpt() []string {
 	return []string{"disable"}
 }
+
+func getDefaultContextWithLevel(user, level, scon string) (string, error) {
+	return "", nil
+}