Comment 2 for bug 2051512

After further investigations into the gzip issue in python 3.12, it turns out there was an undocumented change: it is now a buffered writer. So the fire&forget pattern used in the snippet above doesn't work anymore, we now need to use it as a proper IO object instead.

I still think this should be reported upstream because of the documentation issue, but I'll work on changing the apport code to Do The Right Thing.