fix artifactory read

Author: Emyrk

storage/artifactory.go

@@ -287,8 +287,8 @@ func (s *Artifactory) AddExtension(ctx context.Context, manifest *VSIXManifest,
 // going to Artifactory for the VSIX when it is missing on disk (basically
 // using the disk as a cache).
 func (s *Artifactory) Open(ctx context.Context, fp string) (fs.File, error) {
-	resp, code, err := s.read(ctx, path.Join(s.repo, fp))
-	if err != nil {
+	resp, code, err := s.read(ctx, fp)
+	if code != http.StatusOK || err != nil {
 		switch code {
 		case http.StatusNotFound:
 			return nil, fs.ErrNotExist