[Security] Bump rails-html-sanitizer from 1.0.3 to 1.0.4

[dependabot-preview[bot]]

Bumps rails-html-sanitizer from 1.0.3 to 1.0.4. This update includes security fixes.

Vulnerabilities fixed

*Sourced from [The Ruby Advisory Database](https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails-html-sanitizer/CVE-2018-3741.yml).* > **XSS vulnerability in rails-html-sanitizer** > There is a possible XSS vulnerability in rails-html-sanitizer. The gem allows > non-whitelisted attributes to be present in sanitized output when input with > specially-crafted HTML fragments, and these attributes can lead to an XSS attack > on target applications. > > This issue is similar to CVE-2018-8048 in Loofah. > > Patched versions: >= 1.0.4 > Unaffected versions: none

Release notes

*Sourced from [rails-html-sanitizer's releases](https://github.com/rails/rails-html-sanitizer/releases).* > ## v1.0.4 > * Fix CVE-2018-3741.

Commits

- [`53bf066`](https://github.com/rails/rails-html-sanitizer/commit/53bf066ac3a163546a9c7c44c30998c21068c42d) Prepare to 1.0.4 release - [`f3ba1a8`](https://github.com/rails/rails-html-sanitizer/commit/f3ba1a839a35f2ba7f941c15e239a1cb379d56ae) Make sure we address CVE-2018-8048 - [`7aea595`](https://github.com/rails/rails-html-sanitizer/commit/7aea595ed0c9887b09484cd46435d1af165f24ef) Remove rbx since it doesn't seem to install. - [`9057f42`](https://github.com/rails/rails-html-sanitizer/commit/9057f426df717e92130630cf80215bbbce745cdc) Merge pull request [#66](https://github-redirect.dependabot.com/rails/rails-html-sanitizer/issues/66) from fschwahn/improve-tests - [`2a2a715`](https://github.com/rails/rails-html-sanitizer/commit/2a2a715348522f12e9831b17f54ee286e464724e) Fix deprecation warning from Minitest - [`2e8a706`](https://github.com/rails/rails-html-sanitizer/commit/2e8a7063273015683ccfb7d76ca525382aabd840) Make tests pass again with recent nokogiri versions - [`267b121`](https://github.com/rails/rails-html-sanitizer/commit/267b12113a71ad0932f7b5ff6eb1f896554cffd4) Rename test to better reflect what is actually tested - [`663bf35`](https://github.com/rails/rails-html-sanitizer/commit/663bf35d17cf35d0385861902362333a789cc642) typos - [`362f72d`](https://github.com/rails/rails-html-sanitizer/commit/362f72d1b7a3e7375956ad6ff1d78e6a1b29c5fe) We're still testing against ruby 1.9 and 2.0 that aren't supported by nokogir... - [`1f8b16f`](https://github.com/rails/rails-html-sanitizer/commit/1f8b16f133f190bff505a992d43eb677e31054fb) activesupport 5 doesn't support ruby < 2.2.2 that are still tested in this repo - Additional commits viewable in [compare view](https://github.com/rails/rails-html-sanitizer/compare/v1.0.3...v1.0.4)

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[kenigbolo]

@dependabot rebase

[dependabot-preview[bot]]

Looks like rails-html-sanitizer is up-to-date now, so this is no longer needed.