Chore: Make Greenkeeper ignore @types/node

alrra · alrra · commit b7b85467f116 · 2018-01-26T10:30:47.000-08:00
The issues from `@types/node` package haven't been fixed in a while,
and the numerous PRs Greenkeeper opens for it are getting annoying.
diff --git a/package.json b/package.json
@@ -134,6 +134,7 @@
   ],
   "greenkeeper": {
     "ignore": [
+      "@types/node",
       "angular",
       "jquery",
       "knockout",
