Merge pull request #153 from github/dependabot/bundler/mocha-2.4.2

Bump mocha from 2.4.0 to 2.4.2

Author: github-actions[bot]

Gemfile.lock

@@ -45,7 +45,7 @@ GEM
       nokogiri (>= 1.12.0)
     mini_portile2 (2.8.6)
     minitest (5.24.1)
-    mocha (2.4.0)
+    mocha (2.4.2)
       ruby2_keywords (>= 0.0.5)
     nokogiri (1.16.5)
       mini_portile2 (~> 2.8.2)