Bump rails-html-sanitizer from 1.4.3 to 1.4.4 (#4264)

Bumps [rails-html-sanitizer](https://github.com/rails/rails-html-sanitizer) from 1.4.3 to 1.4.4.
- [Release notes](https://github.com/rails/rails-html-sanitizer/releases)
- [Changelog](https://github.com/rails/rails-html-sanitizer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rails/rails-html-sanitizer/compare/v1.4.3...v1.4.4

)

---
updated-dependencies:
- dependency-name: rails-html-sanitizer
  dependency-type: indirect
...

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