[IEC][SEBA] Verify latest cord-tester on amd64 in preparation for updating on arm64

Since a lot of time has passed since my last attempt to integrate SIAB testing into IEC, we need to re-asses the current situation. SEBA has also advanced upstream, some things have changed, others might have been completely refactored. Even more, we are not yet based on the latest SEBA version, since upstream still works on the tip and things are not always stable.

We will benefit from making a hands-on attempt on running the SiaB tests on our own SEBA-in-a-Box setup in ENEA's private lab, just to see where we are with our reference commit.

Once we get the tests and the framework passing we will move to arm64 and make the necessary adjustments.