[FEATURE] Windows Containers/Node Support

[adambkaplan]

Feature Request

Add support to build Windows container images by running builds on Windows Nodes

Additional Info

We currently do not build Windows image variants of our container images, which means we can't support builds that use any Shipwright-injected step. Originally posted by @SaschaSchwarze0 in shipwright-io/community#205 (comment)

[adambkaplan]

Maybe we need a SHIP for this. This will require at minimum updating our release process to produce manifest lists with Windows images. I think we will also need to consider:

• Impact on the operator
• CI verification - is this even feasible with GitHub actions?

[SaschaSchwarze0]

• CI verification - is this even feasible with GitHub actions?

Yes, there are Windows runners: https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources.