Migrate to docker compose 2.0

[kmazurek]

docker-compose (which is used in goth to handle setting up the Docker network, as well as the "static" part of its containers) recently received a major version bump (https://github.com/docker/compose/releases/tag/v2.0.0), fixing a number of various issues and improving its workflow.

Since Compose 2.0 is no longer available as a standalone binary, migrating to it in goth requires changing how its instructions are invoked. More details can be found here: https://github.com/docker/compose#about-update-and-backward-compatibility