bump github.com/moby/buildkit to v0.13.0 (#351)

* bump github.com/moby/buildkit to v0.13.0

Signed-off-by: Nianyu Shen <nianyu@spectrocloud.com>

* fix: update dep usage based on newer version

Signed-off-by: Nianyu Shen <nianyu@spectrocloud.com>

* remove empty line

Signed-off-by: Nianyu Shen <nianyu@spectrocloud.com>

* ci: bump golang to 1.21.x

* Bump moby

* debug

---------

Signed-off-by: Nianyu Shen <nianyu@spectrocloud.com>
Co-authored-by: Nianyu Shen <nianyu@spectrocloud.com>

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

@@ -18,7 +18,6 @@ import (
 	"bytes"
 	"encoding/json"
 	"errors"
-	"strings"
 
 	v1 "github.com/google/go-containerregistry/pkg/v1"
 	"github.com/google/go-containerregistry/pkg/v1/partial"
@@ -38,6 +37,7 @@ type image struct {
 	configMediaType *types.MediaType
 	diffIDMap       map[v1.Hash]v1.Layer
 	digestMap       map[v1.Hash]v1.Layer
+	subject         *v1.Descriptor
 }
 
 var _ v1.Image = (*image)(nil)
@@ -141,14 +141,8 @@ func (i *image) compute() error {
 		manifest.Config.MediaType = *i.configMediaType
 	}
 
-	// With OCI media types, this should not be set, see discussion:
-	// https://github.com/opencontainers/image-spec/pull/795
 	if i.mediaType != nil {
-		if strings.Contains(string(*i.mediaType), types.OCIVendorPrefix) {
-			manifest.MediaType = ""
-		} else if strings.Contains(string(*i.mediaType), types.DockerVendorPrefix) {
-			manifest.MediaType = *i.mediaType
-		}
+		manifest.MediaType = *i.mediaType
 	}
 
 	if i.annotations != nil {
@@ -160,6 +154,7 @@ func (i *image) compute() error {
 			manifest.Annotations[k] = v
 		}
 	}
+	manifest.Subject = i.subject
 
 	i.configFile = configFile
 	i.manifest = manifest