Bump aws-cdk-lib from 2.8.0 to 2.9.0 in /infra

Bumps [aws-cdk-lib](https://github.com/aws/aws-cdk/tree/HEAD/packages/aws-cdk-lib) from 2.8.0 to 2.9.0.
- [Release notes](https://github.com/aws/aws-cdk/releases)
- [Changelog](https://github.com/aws/aws-cdk/blob/v2.9.0/CHANGELOG.v2.md)
- [Commits](https://github.com/aws/aws-cdk/commits/v2.9.0/packages/aws-cdk-lib)

---
updated-dependencies:
- dependency-name: aws-cdk-lib
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

infra/package.json

@@ -19,7 +19,7 @@
     "typescript": "~4.5.4"
   },
   "dependencies": {
-    "aws-cdk-lib": "2.8.0",
+    "aws-cdk-lib": "2.9.0",
     "@types/js-yaml": "^4.0.5",
     "js-yaml": "^4.1.0",
     "source-map-support": "^0.5.21",