Merge pull request #822 from thephpleague/dependabot/bundler/docs/rubyzip-2.2.0

Bump rubyzip from 1.2.4 to 2.2.0 in /docs

Author: shadowhand

docs/Gemfile.lock

@@ -222,7 +222,7 @@ GEM
     ruby-enum (0.7.2)
       i18n
     ruby_dep (1.5.0)
-    rubyzip (1.2.4)
+    rubyzip (2.2.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)