chore(deps-dev): bump @types/node in /examples/aws-lambda

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 18.18.5 to 20.8.6.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: "@types/node"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

examples/aws-lambda/package.json

@@ -12,7 +12,7 @@
   },
   "devDependencies": {
     "@types/aws-lambda": "^8.10.108",
-    "@types/node": "^18.11.2",
+    "@types/node": "^20.8.6",
     "chai": "^4.3.6",
     "esbuild": "^0.15.12",
     "mocha": "^10.0.0",