chore(package): update uws to version 0.13.0 (#3542)

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -86,6 +86,6 @@
   },
   "optionalDependencies": {
     "bcrypt": "1.0.2",
-    "uws": "^0.12.0"
+    "uws": "^0.13.0"
   }
 }