fix(package): update libphonenumber-js to version 1.6.3

Closes #12

Author: greenkeeper[bot]

package.json

@@ -25,7 +25,7 @@
   "dependencies": {
     "ember-auto-import": "^1.2.5",
     "ember-cli-babel": "^6.16.0",
-    "libphonenumber-js": "~1.0.24"
+    "libphonenumber-js": "~1.6.3"
   },
   "devDependencies": {
     "broccoli-asset-rev": "^3.0.0",