chore(deps): bump express in /examples/newrelic-express-apm (#808)

Bumps [express](https://github.com/expressjs/express) from 4.19.2 to 4.20.0.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/master/History.md)
- [Commits](expressjs/express@4.19.2...4.20.0)

---
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>

examples/newrelic-express-apm/package.json

@@ -12,7 +12,7 @@
     "@commercetools/ts-sdk-apm": "^1.0.0",
     "cors": "^2.8.5",
     "dotenv": "^16.3.1",
-    "express": "^4.19.2",
+    "express": "^4.20.0",
     "newrelic": "^11.5.0",
     "node-fetch": "2.6.7"
   },