Bump @types/node from 20.12.7 to 20.14.9 in /cdk

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 20.12.7 to 20.14.9.
- [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-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

cdk/package-lock.json

@@ -15,7 +15,7 @@
   },
   "devDependencies": {
     "@types/jest": "^27.4.1",
-    "@types/node": "^20.12.7",
+    "@types/node": "^20.14.9",
     "jest": "^26.4.2",
     "ts-jest": "^26.2.0",
     "aws-cdk": "^2.137.0",