chore(deps): bump express in /tests/apps/.websocket.disabled

Bumps [express](https://github.com/expressjs/express) from 4.21.2 to 5.1.0.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/master/History.md)
- [Commits](https://github.com/expressjs/express/compare/4.21.2...v5.1.0)

---
updated-dependencies:
- dependency-name: express
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

tests/apps/.websocket.disabled/package.json

@@ -4,7 +4,7 @@
   "description": "a basic webscket demo",
   "author": "Luigi Maselli",
   "dependencies": {
-    "express": "4.21.x",
+    "express": "5.1.x",
     "connect": "*",
     "handlebars": "~4.7.1",
     "socket.io": "~4.8.0",