Create vSphere golden image without Docker installed

Description

With docker support being dropped in WMCO 6.0, we want to re-create the Windows Server 2022 golden image that we use in vSphere CI to no longer install docker.

Engineering Details

Changes need to be made to autounattend.xml and vSphere docs.

Since the docker install steps also enables to `Containers` feature on Windows OS, which is not on by default on Windows Server 2022, we will need to add steps to explicitly enable it in our golden image scripts – powershell Install-WindowsFeature -Name Containers

Acceptance Criteria

• Docker is no longer installed in the golden image template
• golden image creation instructions/vSphere docs are updated to reflect this; unneeded mentions of docker, including the install-docker.ps1 script, are removed
• Template has OS version of Windows Server 2022 and all functionality including containerd support continues to work as normal
• new golden image is replicated in IBM vSphere environment (engage SPLAT)