Merge PR #574 to pass log level through jailer if set

Once we upgrade fireracker-go-sdk to support firecracker v1.5.0 api we should rea-dd #574 since with v1.5.0 we no longer need to pass log-path with log-level option.

This will require updating [setupLogging](https://github.com/firecracker-microvm/firecracker-go-sdk/blob/main/machine.go#L683) method to enable this behavior