vendor: update c/common

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

vendor/github.com/opencontainers/cgroups/config_unsupported.go

@@ -0,0 +1,8 @@
+//go:build !linux
+
+package cgroups
+
+// Cgroup holds properties of a cgroup on Linux
+// TODO Windows: This can ultimately be entirely factored out on Windows as
+// cgroups are a Unix-specific construct.
+type Cgroup struct{}