Update dependency config to v3.3.12

Author: renovate[bot]

templates/messenger/package.json

@@ -6,7 +6,7 @@
       "start": "node index.js"
     },
     "dependencies": {
-        "config":"3.3.6",
+        "config":"3.3.12",
         "express": "4.17.1",
         "intelligo": "1.3.0"
     }