Setup CI

[leongross]

Since we implement management components, we need a way to test the interaction of multiple devices, either utilizing QEMU or real hardware. We have the required hardware in the Lab, so we could integrate it into dutctl and this repo's CI, using guide

• Set up hardware according to guide using rapsberry pi
• Put script target/ast10x0/harness/uart_test_exec.py onto pi
• Integrate into dutctl
• Enable SSH access
• Install Github Selfhosted Runner