Bump express from 4.19.2 to 4.21.1 in /daemon

Bumps [express](https://github.com/expressjs/express) from 4.19.2 to 4.21.1.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/4.21.1/History.md)
- [Commits](expressjs/express@4.19.2...4.21.1)

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

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

daemon/package.json

@@ -8,7 +8,7 @@
   "dependencies": {
     "axios": "1.7.7",
     "dotenv": "16.4.5",
-    "express": "4.19.2",
+    "express": "4.21.1",
     "lowdb": "1.0.0",
     "minimist": "1.2.8",
     "socket.io": "4.7.5"