Support building and pushing images through buildkit without docker daemon

[virtualzx-nad]

Original issue from goreleaser/goreleaser goreleaser#3759

Implement support for building and pushing container images using buildkit directly, without requiring a Docker daemon.

Required implementation:

1. Add buildkit client integration
2. Support building images without Docker daemon
3. Implement push functionality using buildkit
4. Handle authentication
5. Support all existing Docker build options
6. Add comprehensive tests
7. Update documentation

This is a medium complexity task that requires understanding of:

• BuildKit API
• Container image specifications
• Authentication mechanisms