Upgrading the operating system version of our SaaS runners on Linux

This post details an upcoming upgrade to the container-optimized operating system (COS) for SaaS runners on Linux, including a Docker Engine upgrade from 19.03.15 to 23.0.5. This upgrade introduces compatibility issues with older versions of Docker-in-Docker (prior to 20.10) and Kaniko (prior to v1.9.0), which will result in specific errors. The post provides clear instructions and examples on how to resolve these issues by updating the Docker-in-Docker or Kaniko images used in CI/CD jobs.