Google Artifact Registry Auth for npm/Yarn

The `google-artifactregistry-auth` module (currently at v3.5.0) provides command-line tools to configure npm and Yarn to authenticate with private npm repositories hosted in Google Cloud's Artifact Registry. It streamlines the process of obtaining and managing access tokens by automatically leveraging Google Application Default Credentials or the active `gcloud` login. The package sees a fairly active release cadence, with minor versions introducing features like Yarn support, flexible domain configurations, and token passing, indicating ongoing development and refinement. Its primary differentiator is the deep integration with Google Cloud's authentication mechanisms, making it the go-to solution for JavaScript package management within the Google Cloud ecosystem, especially for CI/CD pipelines and developer workstations. It's designed to simplify the typically complex setup of token-based authentication for private registries.