Bump express from 4.21.2 to 5.1.0

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](expressjs/express@4.21.2...v5.1.0)

---
updated-dependencies:
- dependency-name: express
  dependency-version: 5.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -39,7 +39,7 @@
     "compression": "^1.8.1",
     "css-loader": "^7.1.2",
     "deep-filter": "^1.0.2",
-    "express": "^4.21.2",
+    "express": "^5.1.0",
     "gh-pages": "^6.1.1",
     "glob": "^11.0.3",
     "glob-all": "^3.1.0",