message: catalog-backend: fix integration test processing wait
diff: @@ -131,6 +131,7 @@ class WaitingProgressTracker implements ProgressTracker {
  );
  const currentCount = this.#counts.get(item.id) ?? 0;
  + this.#counts.set(item.id, currentCount);
  const onDone = () => {
  this.#counts.set(item.id, currentCount + 1);
  