Docker compose pull to respect DOCKER_CONTENT_TRUST

[kevinh-jumbo]

Description

Sort of a resurrection of #4787 but now that we're in v2 are there any plans to implement docker content trust for docker compose pull just like a regular docker pull does?

[ndeloof]

This indeed is feasible within compose v2, still need to copy/paste whole https://github.com/docker/cli/blob/master/cli/command/image/trust.go until some refactoring occurs to make this code reusable from compose codebase