fix(package): update @octokit/rest to version 16.8.0

Closes #15

Author: greenkeeper[bot]

package.json

@@ -18,7 +18,7 @@
   },
   "homepage": "https://github.com/crazyfactory/translation_updater",
   "dependencies": {
-    "@octokit/rest": "^15.16.1",
+    "@octokit/rest": "^16.8.0",
     "fallback-cli": "^2.0.2"
   },
   "devDependencies": {