Update ctr so it works again on windows

Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>

cmd/containerd/config_linux.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"github.com/containerd/containerd"
 	"github.com/containerd/containerd/server"
 )
 
@@ -9,7 +8,7 @@ func defaultConfig() *server.Config {
 	return &server.Config{
 		Root: "/var/lib/containerd",
 		GRPC: server.GRPCConfig{
-			Address: containerd.DefaultAddress,
+			Address: server.DefaultAddress,
 		},
 		Debug: server.Debug{
 			Level:   "info",

cmd/containerd/config_unix.go

@@ -8,7 +8,7 @@ func defaultConfig() *server.Config {
 	return &server.Config{
 		Root: "/var/lib/containerd",
 		GRPC: server.GRPCConfig{
-			Address: "/run/containerd/containerd.sock",
+			Address: server.DefaultAddress,
 		},
 		Debug: server.Debug{
 			Level:   "info",