Builders in prod are currently f32. We should move them to f33.

There's a few things that we need before doing that however:

• More testing in staging (I moved staging to f33 last week)

• currently 32 bit arm vm's are not working with rhel8.3 (under investigation).

• We want to also enable at the same time mock bootstrap mode (enabled in staging)

• We also want to move to uefi for armv7 vm's, which will make them update kernels just like everything else and allow us to drop a bunch of special handling in the virt-instance task

When we are ready we can move things without an outage, by taking them out, reinstalling or upgrading and re-adding.