Merge pull request #66 from splitrb/dependabot/bundler/rack-2.2.6.2

Bump rack from 2.2.4 to 2.2.6.2

Author: andrehjr

Gemfile.lock

@@ -3,7 +3,7 @@ GEM
   specs:
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
-    rack (2.2.4)
+    rack (2.2.6.2)
     rack-protection (3.0.4)
       rack
     redis (4.5.1)