[Request]: pass options to buildkit

### Feature or enhancement request details

Much like folks in this issue https://github.com/docker/buildx/issues/484 I face logs getting clipped. Since I am doing rather heavy Buildroot builds it's not entirely necessary to see the full log but it does help for monitoring progress.

The linked issue suggests these options passed in to the build:

- 10MB log size: `--driver-opt env.BUILDKIT_STEP_LOG_MAX_SIZE=10485760`
- speed related: `--driver-opt env.BUILDKIT_STEP_LOG_MAX_SPEED=-1`

I don't know how relevant these are in relation to `container` however.

### Code of Conduct

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