Update go-containerregistry to master

vendor/github.com/google/go-containerregistry/pkg/v1/mutate/mutate.go

@@ -280,8 +280,8 @@ func Time(img v1.Image, t time.Time) (v1.Image, error) {
 
 	// Copy basic config over
 	cfg.Architecture = ocf.Architecture
-	cfg.Author = ocf.Author
 	cfg.OS = ocf.OS
+	cfg.OSVersion = ocf.OSVersion
 	cfg.Config = ocf.Config
 
 	// Strip away timestamps from the config file

vendor/github.com/google/go-containerregistry/pkg/v1/remote/transport/bearer.go

@@ -92,6 +92,12 @@ func (bt *bearerTransport) refresh() error {
 	if err != nil {
 		return err
 	}
+
+	if auth.RegistryToken != "" {
+		bt.bearer.RegistryToken = auth.RegistryToken
+		return nil
+	}
+
 	var content []byte
 	if auth.IdentityToken != "" {
 		// If the secret being stored is an identity token,