KiCad v6 is getting closer to release

Now is a great time to test the nightly builds, as we are fairly close (in terms of remaining work, hard to say exactly in terms of time) to a 6.0 release candidate. Putting aside the Python API which is still a work in progress, there are actually very few remaining issues that are both reproducible and high-priority. Additional testers would be greatly appreciated to make sure there aren’t issues we have missed that should get fixed before 6.0 is released.