Bump express from 4.18.2 to 4.19.2 in /experimental/traffic-portal (#…

…7977)

Bumps [express](https://github.com/expressjs/express) from 4.18.2 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@4.18.2...4.19.2)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

experimental/traffic-portal/package.json

@@ -67,7 +67,7 @@
     "argparse": "^2.0.1",
     "chart.js": "^2.9.4",
     "compression-webpack-plugin": "^10.0.0",
-    "express": "^4.15.2",
+    "express": "^4.19.2",
     "node-forge": "^1.3.1",
     "rxjs": "~6.6.0",
     "trafficops-types": "^4.0.11",