fix(oci): check deferred Close in copyFilePreservingMode (errcheck)

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:opus-4.8 [Claude Code]

Author: mudler

pkg/oci/image.go

@@ -652,7 +652,7 @@ func copyFilePreservingMode(src, dst string) error {
 	if err != nil {
 		return err
 	}
-	defer in.Close()
+	defer func() { _ = in.Close() }()
 	info, err := in.Stat()
 	if err != nil {
 		return err