[3dprinter-general] Cura issue with Sentry SDK / eventlet

[Gregor Riepl]

> TBH I'm lost. Cura starts properly here, so I have no idea if the fix
> actually fixes anything.

Ok... so the situation is like this:

There doesn't seem to be a direct dependency path between cura and 
eventlet. However, if eventlet is installed, python3-sentry-sdk will 
make use of it, and that will crash on startup.

If you install python3-eventlet, you'll see it happen.

Unfortunately, there seem to be quite a few packages that depend on 
eventlet, so making cura or sentry-sdk conflict with eventlet seems way 
too heavy-handed.

Perhaps there is a way to prevent sentry-sdk from loading eventlet?