chore(deps): update dependency pack-n-play to v4 (#152)

Author: renovate-bot

core/packages/proto3-json-serializer-nodejs/package.json

@@ -49,7 +49,7 @@
     "jsdoc-region-tag": "^3.0.0",
     "linkinator": "^6.1.2",
     "mocha": "^11.1.0",
-    "pack-n-play": "^3.0.0",
+    "pack-n-play": "^4.0.0",
     "protobufjs-cli": "^1.1.3",
     "typescript": "~5.8.2"
   },