fix(deps): update dependency mustache to ~2.3.0

Author: renovate[bot]

plugin/multiplex/package.json

@@ -12,7 +12,7 @@
   "dependencies": {
     "express": "~4.13.3",
     "grunt-cli": "~0.1.13",
-    "mustache": "~2.2.1",
+    "mustache": "~2.3.0",
     "socket.io": "~1.3.7"
   },
   "license": "MIT"