chore: bump aws-cdk-lib in /examples/mern-cdk-ci-cd/atlas-integ-infra

Bumps [aws-cdk-lib](https://github.com/aws/aws-cdk/tree/HEAD/packages/aws-cdk-lib) from 2.187.0 to 2.189.1.
- [Release notes](https://github.com/aws/aws-cdk/releases)
- [Changelog](https://github.com/aws/aws-cdk/blob/v2.189.1/CHANGELOG.v2.alpha.md)
- [Commits](https://github.com/aws/aws-cdk/commits/v2.189.1/packages/aws-cdk-lib)

---
updated-dependencies:
- dependency-name: aws-cdk-lib
  dependency-version: 2.189.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

examples/mern-cdk-ci-cd/atlas-integ-infra/package.json

@@ -20,7 +20,7 @@
     "typescript": "~4.9.4"
   },
   "dependencies": {
-    "aws-cdk-lib": "2.187.0",
+    "aws-cdk-lib": "2.189.1",
     "@mongodbatlas-awscdk/atlas-basic": "1.1.6",
     "constructs": "^10.0.0",
     "source-map-support": "^0.5.21"