Scheduling: Support multiple architectures

[fntlnz]

At the moment of writing this issue, kubectl trace only supports X86-64 as target architecture.

The tool should be able to schedule bpftrace programs against all the architectures supported by bpftrace, that are X86-64 and arm64 (aarch64) see the Cmake definition.

To achieve that we need to build the trace runner image as a multi arch image.

[praveensastry]

I would like to contribute to this @fntlnz