Loong64 support for Debusine CI
As Loongarch is becoming an official architecture, it would be nice if Debusine could support Loong64 for CI.
There are some reasonably powerful Loong64 machines on the market and I know people who can arrange shipping of server class Loong64 machines to Europe. For a dual 3C6000/D server (32 cores, 64 threads) it's about 3750EUR for the mainboard plus some more for RAM/disk/shipping. That should be enough performance for running CI.
issue