Update storage samples. (#263)

* Update storage samples.

* Update dependencies.

Author: jmdobry

monitoring/snippets/package.json

@@ -10,6 +10,6 @@
   },
   "dependencies": {
     "async":"2.1.2",
-    "googleapis": "14.2.0"
+    "googleapis": "15.0.0"
   }
 }