Bump loofah from 2.18.0 to 2.22.0 (#49)

Bumps [loofah](https://github.com/flavorjones/loofah) from 2.18.0 to 2.22.0.
- [Release notes](https://github.com/flavorjones/loofah/releases)
- [Changelog](https://github.com/flavorjones/loofah/blob/main/CHANGELOG.md)
- [Commits](flavorjones/loofah@v2.18.0...v2.22.0)

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

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Gemfile.lock

@@ -121,9 +121,9 @@ GEM
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
     iniparse (1.4.4)
-    loofah (2.18.0)
+    loofah (2.22.0)
       crass (~> 1.0.2)
-      nokogiri (>= 1.5.9)
+      nokogiri (>= 1.12.0)
     mail (2.8.1)
       mini_mime (>= 0.1.1)
       net-imap