build(deps): 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

@@ -43,7 +43,7 @@
     "cacheable-request": "^8.3.1",
     "class-validator": "^0.14.1",
     "dotenv": "^16.4.7",
-    "express": "^4.21.1",
+    "express": "^4.21.2",
     "lodash": "^4.17.21",
     "mathjs": "^14.0.0",
     "mime-types": "^2.1.35",