Bump express from 4.17.3 to 4.19.2 in /examples (#762)

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:production
...

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examples/package.json

@@ -10,7 +10,7 @@
     "@hotwired/turbo": "^7.2.4",
     "babel-loader": "^8.0.6",
     "ejs": "^3.1.7",
-    "express": "^4.17.3",
+    "express": "^4.19.2",
     "webpack": "^4.39.1",
     "webpack-dev-middleware": "^3.7.0"
   },