chore(package): update request to version 2.88.0 (#34)

package.json

@@ -44,6 +44,6 @@
     "istanbul": "~0.4.5",
     "mocha": "~5.2.0",
     "pre-commit": "~1.2.0",
-    "request": "~2.87.0"
+    "request": "~2.88.0"
   }
 }