bug#71886: Diffoscope test suite fails with openssh 9.8p1

[Kaelyn]

Hi Richard,

I've encountered the diffoscope failure as well, and looked at their  repo to 
see how new version 271 was and what activity has happened since. It looks like 
they may have already fixed the test failures, pending a new release: 
https://salsa.debian.org/reproducible-builds/diffoscope/-/commit/0743d63f85f298131e78045ec6d73acdc50b97eb

Cheers,
Kaelyn