Coder for Docker and AWS EC2 Alpha: Coder v1.25

The latest version of Coder, v1.25, is now available for installation or upgrade. This release introduces significant updates including the ability to install and run Coder with Docker, alpha support for using AWS EC2-based workspaces, multi-zone support, and more. Additionally, Coder has added support for provisioning workspaces on EC2 instances managed by Amazon Web Services. The "New workspace" screen in Coder v1.25 has been simplified with many options moved to the "Advanced" panel. This version will be the last release to support Kubernetes v1.19 clusters, as future releases will require the use of Kubernetes 1.20 or later.