add new youtubedl dependency

downloader/vendor/github.com/kkdai/youtube/v2/artifacts.go

@@ -0,0 +1,29 @@
+package youtube
+
+import (
+	"log/slog"
+	"os"
+	"path/filepath"
+)
+
+// destination for artifacts, used by integration tests
+var artifactsFolder = os.Getenv("ARTIFACTS")
+
+func writeArtifact(name string, content []byte) {
+	// Ensure folder exists
+	err := os.MkdirAll(artifactsFolder, os.ModePerm)
+	if err != nil {
+		slog.Error("unable to create artifacts folder", "path", artifactsFolder, "error", err)
+		return
+	}
+
+	path := filepath.Join(artifactsFolder, name)
+	err = os.WriteFile(path, content, 0600)
+
+	log := slog.With("path", path)
+	if err != nil {
+		log.Error("unable to write artifact", "error", err)
+	} else {
+		log.Debug("artifact created")
+	}
+}