[Debian-salsa-ci] replace reprotest by debrebuild

[Otto Kekäläinen]

Hi!

Thanks for working on this effort!

I don't have enough expertise in this area to advice what should be
done, but I just wanted to thank you for working on it.

I was trying to browse the results at
https://reproduce.debian.net/all/stats/forky/#failed-to-reproduce and
looked at failed ones, but I don't know even how to read the log. For
example package 'mono' failed to reproduce but I don't see any issues
in the log at https://reproduce.debian.net/all/api/v1/builds/117850/log.
I would be curious to learn what is the process when suspected
supply-chain interference is detected, who investigates them and so
on.