Update packing script

Author: arivera-tiempodev

function/package.json

@@ -5,7 +5,7 @@
   "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "pack": "zip -r code.zip *",
+    "pack": "rm -Rf node_modules && npm install --production && zip -rq code.zip *",
     "dev": "sam local invoke -e ./dev/event.json -t ../template.yaml",
     "local": "LOCAL=true node index.js"
   },