Bump loofah from 2.2.2 to 2.19.1

Bumps [loofah](https://github.com/flavorjones/loofah) from 2.2.2 to 2.19.1.
- [Release notes](https://github.com/flavorjones/loofah/releases)
- [Changelog](https://github.com/flavorjones/loofah/blob/main/CHANGELOG.md)
- [Commits](flavorjones/loofah@v2.2.2...v2.19.1)

---
updated-dependencies:
- dependency-name: loofah
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -75,7 +75,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
-    crass (1.0.4)
+    crass (1.0.6)
     domain_name (0.5.20180417)
       unf (>= 0.0.5, < 1.0.0)
     doorkeeper (5.0.0)
@@ -132,7 +132,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.2)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
@@ -145,18 +145,21 @@ GEM
     mime-types (3.2.2)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2018.0812)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.1)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     msgpack (1.2.4)
     multi_json (1.13.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
     netrc (0.11.0)
     nio4r (2.3.1)
-    nokogiri (1.8.4)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     oauth (0.5.4)
     oauth2 (1.4.0)
       faraday (>= 0.8, < 0.13)
@@ -167,6 +170,7 @@ GEM
     pg (1.1.3)
     public_suffix (3.0.3)
     puma (3.12.0)
+    racc (1.6.1)
     rack (2.0.5)
     rack-proxy (0.6.4)
       rack