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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Gemfile.lock

@@ -220,7 +220,7 @@ GEM
       activesupport (>= 4)
       railties (>= 4)
       request_store (~> 1.0)
-    loofah (2.18.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -237,7 +237,7 @@ GEM
     multipart-post (2.1.1)
     net-ldap (0.17.0)
     nio4r (2.5.8)
-    nokogiri (1.13.7)
+    nokogiri (1.13.10)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     oauth (0.5.10)
@@ -301,7 +301,7 @@ GEM
     public_suffix (4.0.7)
     puma (4.3.12)
       nio4r (~> 2.0)
-    racc (1.6.0)
+    racc (1.6.1)
     rack (2.2.4)
     rack-oauth2 (1.21.2)
       activesupport
@@ -333,8 +333,8 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.4.3)
-      loofah (~> 2.3)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     railties (5.2.8.1)
       actionpack (= 5.2.8.1)
       activesupport (= 5.2.8.1)