Bump express in /6-AdvancedScenarios/1-call-api-obo/API

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
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Diff for: 6-AdvancedScenarios/1-call-api-obo/API/package-lock.json

@@ -16,7 +16,7 @@
     "@azure/msal-node": "^1.15.0",
     "@microsoft/microsoft-graph-client": "^3.0.4",
     "cors": "^2.8.5",
-    "express": "^4.14.0",
+    "express": "^4.19.2",
     "express-rate-limit": "^6.7.0",
     "isomorphic-fetch": "^3.0.0",
     "morgan": "^1.10.0",