Support TemplateField for build.artifacts.docker.cliFlags

[kitagry]

Fixes: #9581

Description

Upon installing Docker Buildx, the docker build command becomes an alias for docker buildx build. This means that any subsequent docker build commands will be executed using the more advanced features provided by Buildx. Specifically, we intend to leverage the --cache-to=type=registry,ref=repo/image:tag flag within these commands. In order to several registry, I want to TemplateField for build.artifacts.docker.cliFlags as following.

build:
  artifacts:
    - image: repo/image
      context: .
      docker:
        dockerfile: Dockerfile
        cliFlags:
          - "--cache-to={{ .IMAGE_REPO }}/{{ .IMAGE_NAME }}:latest-cache"

User facing changes (remove if N/A)

User can use TemplateField in cliFlags.

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[louisjimenez]

Is this something that can be moved to where the other cli args are built: https://github.com/GoogleContainerTools/skaffold/blob/main/pkg/skaffold/docker/image.go#L629? I believe that would also add support for the GCB case.

[kitagry]

Sorry for the late reply. I fixed it!