build: update @types/node requirement to ^10.0.3 (#2532)

Updates the requirements on [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped) to permit the latest version.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -49,7 +49,7 @@
     "zlib-sync": "^0.1.0"
   },
   "devDependencies": {
-    "@types/node": "^9.4.6",
+    "@types/node": "^10.0.3",
     "discord.js-docgen": "discordjs/docgen",
     "eslint": "^4.17.0",
     "json-filter-loader": "^1.0.0",