Merge pull request #266 from ruby-i18n/dependabot/bundler/rack-2.2.8.1

Bump rack from 2.2.6.4 to 2.2.8.1

Author: movermeyer

Gemfile.lock

@@ -71,7 +71,7 @@ GEM
     psych (5.1.0)
       stringio
     racc (1.8.1)
-    rack (2.2.6.4)
+    rack (2.2.8.1)
     rainbow (3.1.1)
     rake (13.0.1)
     rchardet (1.8.0)