message: Fix `repo-age` where there is only one commit
diff: @@ -67,7 +67,10 @@ const getFirstCommit = cache.function(async (): Promise<[string, string] | undef
  }
  if (commitsCount === 1) {
  - return [select('.commit-tease-sha + span relative-time')!.attributes.datetime.value, commitUrl];
  + return [select([
  + '.commit-tease-sha + span relative-time', // Pre "Repository refresh" layout
  + '.js-details-container a relative-time'
  + ])!.attributes.datetime.value, commitUrl];
  }
  return getRepoAge(commitSha, commitsCount);
  