Support Docker Image Server of CodeBuild

This can significantly speed up ContainerImageBuild jobs (and possibly NodejsBuild) when users frequently change assets and deploy a stack.

https://aws.amazon.com/blogs/aws/accelerate-ci-cd-pipelines-with-the-new-aws-codebuild-docker-server-capability/

Basically, we want to resolve the issue described here more elegantly:

https://github.com/tmokmss/deploy-time-build/blob/cb11c0eb1446c46b7ae2f160c104f760c8c82d09/README.md?plain=1#L106-L122

Note that for many users who just deploy a stack only once (e.g. users of GenU/BrChat), it will introduce additional cost without much benefit, so we have to carefully evaluate when implementing this feature. Maybe we need an explicit flag to enable the feature, or we just do not need this feature.

(Copied from https://github.com/tmokmss/deploy-time-build/issues/41)