Bump @types/express in /typescript-express-reviews

Bumps [@types/express](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/express) from 4.17.18 to 4.17.21.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/express)

---
updated-dependencies:
- dependency-name: "@types/express"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

typescript-express-reviews/package.json

@@ -24,7 +24,7 @@
   "devDependencies": {
     "@types/bcryptjs": "^2.4.2",
     "@types/body-parser": "^1.19.2",
-    "@types/express": "4.17.18",
+    "@types/express": "4.17.21",
     "@types/mocha": "10.0.2",
     "@types/node": "20.8.4",
     "axios": "1.5.1",