Qemu exporter not working - Default build does not include qemu

[autolyticus]

Bug description

Hi, is there any particular reason why "qemu" is disabled as a default feature in Cargo.toml? I believe that the docker image as well as the default builds should have this feature enabled.

I think the unique capability of Scaphandre is that it is capable of getting process based consumption even within VMs. I believe that the default should include qemu as well.

If you guys disagree, I believe that at least the documentation here should reflect some mention of how you would need to recompile it by enabling this flag in Cargo.toml

To Reproduce

Follow the default installation or any of the packages or the docker image, and attempt to run scaphandre qemu. This fails.

Additional context