Merge pull request #336 from ruby-i18n/dependabot/bundler/rack-2.2.20

Bump rack from 2.2.14 to 2.2.20

Author: movermeyer

Gemfile.lock

@@ -92,7 +92,7 @@ GEM
       date
       stringio
     racc (1.8.1)
-    rack (2.2.14)
+    rack (2.2.20)
     rainbow (3.1.1)
     rake (13.2.1)
     rbs (3.9.5)