Bump aws-cdk-lib from 2.171.1 to 2.173.4 in /pipelines

Bumps [aws-cdk-lib](https://github.com/aws/aws-cdk/tree/HEAD/packages/aws-cdk-lib) from 2.171.1 to 2.173.4.
- [Release notes](https://github.com/aws/aws-cdk/releases)
- [Changelog](https://github.com/aws/aws-cdk/blob/main/CHANGELOG.v2.md)
- [Commits](https://github.com/aws/aws-cdk/commits/v2.173.4/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] <[email protected]>

Author: dependabot[bot]

pipelines/package-lock.json

@@ -29,7 +29,7 @@
     "aws-cdk": "^2.171.1"
   },
   "dependencies": {
-    "aws-cdk-lib": "^2.171.1",
+    "aws-cdk-lib": "^2.173.4",
     "constructs": "^10.4.2"
   }
 }