AWS CDK Asset Node.js Proxy Agent v5

The `aws-cdk-asset-node-proxy-agent-v5` library provides an AWS CDK Construct that configures Node.js-based assets (e.g., Lambda functions) to use an HTTP/HTTPS proxy during their build and bundling phases. This is critical for CDK deployments in corporate environments where internet access requires going through a proxy, leveraging the `proxy-agent` Node.js library. It is an experimental construct from `cdklabs` and is currently at version 2.0.166, aligning with AWS CDK v2 releases, with updates tied to CDK's release cadence.