Bump loofah from 2.7.0 to 2.19.1

Bumps [loofah](https://github.com/flavorjones/loofah) from 2.7.0 to 2.19.1.
- [Release notes](https://github.com/flavorjones/loofah/releases)
- [Changelog](https://github.com/flavorjones/loofah/blob/main/CHANGELOG.md)
- [Commits](https://github.com/flavorjones/loofah/compare/v2.7.0...v2.19.1)

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

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

Gemfile.lock

@@ -124,7 +124,7 @@ GEM
       addressable (~> 2.7)
     leaflet-rails (1.7.0)
       rails (>= 4.2.0)
-    loofah (2.7.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -134,13 +134,14 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2020.0512)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.14.2)
     multi_json (1.15.0)
     multipart-post (2.1.1)
     nio4r (2.5.4)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     omniauth (1.9.1)
       hashie (>= 3.4.6)
       rack (>= 1.6.2, < 3)
@@ -159,6 +160,7 @@ GEM
     public_suffix (4.0.6)
     puma (5.0.0)
       nio4r (~> 2.0)
+    racc (1.6.1)
     rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -322,6 +324,7 @@ DEPENDENCIES
   rubocop
   rubocop-faker
   sass-rails
+  sassc (~> 2.1.0)
   shoulda-matchers (~> 3.1)
   simplecov
   slim-rails