Move pkg/testutil to internal/testutil

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

runtime/v2/bundle_linux_test.go

@@ -26,9 +26,9 @@ import (
 	"syscall"
 	"testing"
 
+	"github.com/containerd/containerd/v2/internal/testutil"
 	"github.com/containerd/containerd/v2/pkg/namespaces"
 	"github.com/containerd/containerd/v2/pkg/oci"
-	"github.com/containerd/containerd/v2/pkg/testutil"
 	"github.com/containerd/typeurl/v2"
 	"github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/stretchr/testify/assert"

runtime/v2/bundle_test.go

@@ -19,5 +19,5 @@ package v2
 import (
 	// When testutil is imported for one platform (bundle_linux_test.go) it
 	// should be imported for all platforms.
-	_ "github.com/containerd/containerd/v2/pkg/testutil"
+	_ "github.com/containerd/containerd/v2/internal/testutil"
 )