Move to use github.com/containerd/log

Add github.com/containerd/log to go.mod

Signed-off-by: Derek McGowan <derek@mcg.dev>

services/sandbox/controller_service.go

@@ -26,10 +26,10 @@ import (
 	api "github.com/containerd/containerd/api/services/sandbox/v1"
 	"github.com/containerd/containerd/errdefs"
 	"github.com/containerd/containerd/events"
-	"github.com/containerd/containerd/log"
 	"github.com/containerd/containerd/plugin"
 	"github.com/containerd/containerd/protobuf"
 	"github.com/containerd/containerd/sandbox"
+	"github.com/containerd/log"
 )
 
 func init() {