chore(package): update supertest to version 4.0.2

greenkeeper[bot] · greenkeeper[bot] · commit f592db11cbed · 2019-03-15T13:05:58.000Z
Closes #17
diff --git a/package.json b/package.json
@@ -28,6 +28,6 @@
   },
   "devDependencies": {
     "mocha": "^5.0.0",
-    "supertest": "^3.0.0"
+    "supertest": "^4.0.2"
   }
 }
