lib/facter/docker.rb: containerd.io, runc versions

lib/facter/gwdg_docker.rb

@@ -117,7 +117,7 @@ if $? == 0
     $containerd_info = %x(containerd --version 2>/dev/null)
     $containerd_info.each_line do |line|
         if (line[/^containerd/])
-            $containerd_version = line[/^containerd\s*(.*)\s*(.*)/,2].strip
+            $containerd_version = line[/^containerd\s*containerd.io\s*(.*)/,1].strip
             Facter.add("containerd_version") do
                 setcode do
                     "#{$containerd_version}"