Bump express from 4.17.3 to 4.19.2 in /serverless (deprecated)

Bumps [express](https://github.com/expressjs/express) from 4.17.3 to 4.19.2.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/master/History.md)
- [Commits](expressjs/express@4.17.3...4.19.2)

---
updated-dependencies:
- dependency-name: express
  dependency-type: direct:development
...

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

serverless (deprecated)/package.json

@@ -47,7 +47,7 @@
     "body-parser": "^1.17.2",
     "chai": "^4.0.2",
     "cors": "^2.8.3",
-    "express": "^4.17.3",
+    "express": "^4.19.2",
     "json-loader": "^0.5.4",
     "mocha": "^3.4.2",
     "serverless-offline": "^3.14.2",