www/ruby-rails-html-sanitizer: update to 1.3.0

Update ruby-rails-html-sanitizer to 1.3.0.

## 1.3.0

* Address deprecations in Loofah 2.3.0.

  *Josh Goodall*

## 1.2.0

* Remove needless `white_list_sanitizer` deprecation.

  By deprecating this, we were forcing Rails 5.2 to be updated or spew
  deprecations that users could do nothing about.

  That's pointless and I'm sorry for adding that!

  Now there's no deprecation warning and Rails 5.2 works out of the box, while
  Rails 6 can use the updated naming.

  *Kasper Timm Hansen*

## 1.1.0

* Add `safe_list_sanitizer` and deprecate `white_list_sanitizer` to be removed
  in 1.2.0. https://github.com/rails/rails-html-sanitizer/pull/87

  *Juanito Fatas*

* Remove `href` from LinkScrubber's `tags` as it's not an element.
  https://github.com/rails/rails-html-sanitizer/pull/92

  *Juanito Fatas*

* Explain that we don't need to bump Loofah here if there's CVEs.
  https://github.com/rails/rails-html-sanitizer/commit/d4d823c617fdd0064956047f7fbf23fff305a69b

  *Kasper Timm Hansen*

(taca)