chore(package): update mocha to version 6.1.4

greenkeeper[bot] · greenkeeper[bot] · commit 2bfea11a5479 · 2019-04-18T18:53:35.000Z
Closes #32
diff --git a/package.json b/package.json
@@ -28,6 +28,6 @@
   "devDependencies": {
     "42-cent-model": "^2.0.0",
     "casual": "1.5.19",
-    "mocha": "^5.1.1"
+    "mocha": "^6.1.4"
   }
 }
