fix: bump express from 4.21.1 to 4.21.2

Bumps [express](https://github.com/expressjs/express) from 4.21.1 to 4.21.2.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/4.21.2/History.md)
- [Commits](expressjs/express@4.21.1...4.21.2)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -23,7 +23,7 @@
     "@dotcom-reliability-kit/log-error": "^4.0.4",
     "@dotcom-reliability-kit/middleware-log-errors": "^4.2.5",
     "@dotcom-reliability-kit/middleware-render-error-info": "^5.1.11",
-    "express": "^4.21.1"
+    "express": "^4.21.2"
   },
   "volta": {
     "node": "20.10.0",