Update pkg binaries to latest available node v8.11.3 version

Author: yamalight

package.json

@@ -12,7 +12,7 @@
   "scripts": {
     "test": "TZ=Greenland NODE_ENV=testing jest --coverage --silent --maxWorkers=2 --ci",
     "coveralls": "cat ./coverage/lcov.info | coveralls",
-    "package": "pkg --targets node8.9.0-linux-x64,node8.9.0-win-x64,node8.9.0-macos-x64 -o exoframe index.js"
+    "package": "pkg --targets node8.11.3-linux-x64,node8.11.3-win-x64,node8.11.3-macos-x64 -o exoframe index.js"
   },
   "dependencies": {
     "boxen": "^1.2.2",