Upgrading the operating system version of our SaaS runners on Linux

What this post added

This post details an upcoming upgrade to the operating system (Container-Optimized OS) and Docker Engine (from 19.03.15 to 23.0.5) for GitLab's Linux SaaS runners. It identifies compatibility issues with Docker-in-Docker and Kaniko jobs due to this upgrade and provides specific instructions on how to update job configurations to resolve these issues by using newer versions of `docker:dind` (20.10+) and `gcr.io/kaniko-project/executor` (v1.9.0+).