Merge pull request #76 from showwin/dependabot/bundler/webapp/ruby/rack-2.2.8.1

Bump rack from 2.2.8 to 2.2.8.1 in /webapp/ruby

Author: showwin

webapp/ruby/Gemfile.lock

@@ -8,7 +8,7 @@ GEM
     mysql2 (0.5.5)
     mysql2-cs-bind (0.0.6)
       mysql2
-    rack (2.2.8)
+    rack (2.2.8.1)
     rack-protection (2.2.3)
       rack
     raindrops (0.16.0)