The annotation reference tests now show the date/time placeholder, but since localization is not active we don't see the actual date/time string. It would be nice to be able to have this in the reference images.
const response = await fetch(this.manifestFile);
      if (!response.ok) {
        throw new Error(response.statusText);
      }
      this._log("done\n");
      this.manifest = await response.json();
      if (this.testFilter?.length || this.xfaOnly) {
        this.manifest = this.manifest.filter(item => {
          if (this.testFilter.includes(item.id)) {
            return true;
          }
          if (this.xfaOnly && item.enableXfa) {
            return true;
          }
          return false;
        });
      }
      this.currentTask = 0;
      this._nextTask();
    }, this.delay);
  }
  /**
   * A debugging tool to log to the terminal while tests are running.
   * XXX: This isn't currently referenced, but it's useful for debugging so
   * do not remove it.
   *
   * @param {string} msg - The message to log, it will be prepended with the
   *    current PDF ID if there is one.
   */
  log(msg) {