chore(deps): update dependency mocha to v4.1.0

Author: renovate-bot

package.json

@@ -42,7 +42,7 @@
     "generate-changelog": "1.7.0",
     "hubot-test-helper": "1.8.1",
     "istanbul": "0.4.5",
-    "mocha": "4.0.1",
+    "mocha": "4.1.0",
     "nock": "9.1.5"
   }
 }

yarn.lock

@@ -1098,9 +1098,9 @@ [email protected], [email protected], mkdirp@^0.5.0:
   dependencies:
     minimist "0.0.8"
 
-mocha@4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-4.0.1.tgz#0aee5a95cf69a4618820f5e51fa31717117daf1b"
+mocha@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-4.1.0.tgz#7d86cfbcf35cb829e2754c32e17355ec05338794"
   dependencies:
     browser-stdout "1.3.0"
     commander "2.11.0"