Bump qs and express

Bumps [qs](https://github.com/ljharb/qs) to 6.15.2 and updates ancestor dependency [express](https://github.com/expressjs/express). These dependencies need to be updated together.


Updates `qs` from 6.13.0 to 6.15.2
- [Changelog](https://github.com/ljharb/qs/blob/main/CHANGELOG.md)
- [Commits](ljharb/qs@v6.13.0...v6.15.2)

Updates `express` from 4.22.1 to 4.22.2
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/v4.22.2/History.md)
- [Commits](expressjs/express@v4.22.1...v4.22.2)

---
updated-dependencies:
- dependency-name: express
  dependency-version: 4.22.2
  dependency-type: direct:production
- dependency-name: qs
  dependency-version: 6.15.2
  dependency-type: indirect
...

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

Author: dependabot[bot]

code-samples/serving/hello-world/helloworld-nodejs/package-lock.json

@@ -9,6 +9,6 @@
   "author": "",
   "license": "Apache-2.0",
   "dependencies": {
-    "express": "^4.22.1"
+    "express": "^4.22.2"
   }
 }