Added support for building images with buildkit

[silh]

What does this PR do?

Automatically build images with buildkit instead of the old builder.

Why is it important?

Buildkit is since a few docker version a default building mechanism in Docker and many Dockerfiles are relying on features only available with Builkit support enabled. However the current testcontainers implementation doesn't support buildkit.

Related issues

• Stackoverflow https://stackoverflow.com/a/76501621/3636639
• Discussion https://github.com/testcontainers/testcontainers-go/discussions/573

How to test this PR

An autotest is added which fails when the added code in docker.go is disabled and succeeds when it is enabled. Another way to test would be to use an old docker version (before API 1.39) - then the test TestBuildImageFromDockerfileBuildx will also fail.

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[silh]

I see there are some test failures related to logs output when building an image and I'll look into that.

Meanwhile, I would like to hear your opinion about enabling buildkit automatically, as I do in this PR, or maybe it should be a build option that users could specify?