Bump loofah from 2.4.0 to 2.19.1

Bumps [loofah](https://github.com/flavorjones/loofah) from 2.4.0 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@v2.4.0...v2.19.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -108,7 +108,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.5)
-    crass (1.0.5)
+    crass (1.0.6)
     diff-lcs (1.3)
     docile (1.3.2)
     erubi (1.9.0)
@@ -125,23 +125,23 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.4.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
     method_source (0.9.2)
     mini_mime (1.0.2)
-    mini_portile2 (2.6.1)
+    mini_portile2 (2.8.0)
     minitest (5.13.0)
     nio4r (2.5.2)
-    nokogiri (1.12.5)
-      mini_portile2 (~> 2.6.1)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     pg (1.2.0)
     public_suffix (4.0.6)
     puma (3.12.4)
-    racc (1.5.2)
+    racc (1.6.1)
     rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)