Move to github.com/moby/moby/client from docker/docker

[trufflesteeeve]

Moby is the preferred docker client library. The tests were also updated, because image pull options are in a different location.

Most of the changes here after updating are from go mod tidy.

Description:

The goal is to move to an updated docker package. It is only used in tests, so this isn't high priority.

Checklist:

• Tests passing (make test-community)?
• Lint passing (make lint this requires golangci-lint)?

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Note

Low Risk
Scope is test-only Docker client wiring and dependency housekeeping; no production scan or auth paths are changed in this diff.

Overview
This PR switches the direct Docker Engine client from github.com/docker/docker to github.com/moby/moby/client (with moby/moby/api), which is the maintained Moby split of the old monolithic module.

The only application code change is in pkg/sources/docker/docker_test.go: imports and the local-daemon setup now use dockerClient.New(dockerClient.FromEnv) and dockerClient.ImagePullOptions instead of NewClientWithOpts / types/image.PullOptions. go.mod / go.sum reflect go mod tidy—docker/docker remains as an indirect dependency (e.g. testcontainers), plus minor bumps (pgregory.net/rapid, docker/go-connections, moby/term, Azure/go-ansiterm).

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