OIDC simplifies GitLab CI/CD authentication with Google Cloud

What this post added

Introduced OIDC modules for secure authentication between GitLab CI and Google Cloud. This includes a Terraform module for configuring Google Cloud Workload Identity pools and providers, and a CI template for GitLab CI to facilitate the integration. The solution eliminates the need for static service account keys, reducing the risk of compromise and improving auditability by tying authentication to specific CI jobs.