message: docs: add redirect test
  Add redirect test for new latest version topic.
  PR Close
diff: /guide/setup-systemjs-anatomy --> /guide/file-structure
  /guide/updating-to-version-10 --> https://v10.angular.io/guide/updating-to-version-10
  /guide/updating-to-version-11 --> https://v11.angular.io/guide/updating-to-version-11
  +/guide/updating-to-version-12 --> /guide/update-to-latest-version
  /guide/webpack --> https://v5.angular.io/guide/webpack
  /index.html?foo=bar --> /?foo=bar
  /news --> https://blog.angular.io/
  