gitlab CI: drop qemu, switch to b2c
A fair bit of cleanup so we can eventually copy @bentiss' bits from the libinput CI to use b2c instead of qemu.
This should allow us to update to more recent Fedoras that no longer work with the qemu templates.
A fair bit of cleanup so we can eventually copy @bentiss' bits from the libinput CI to use b2c instead of qemu.
This should allow us to update to more recent Fedoras that no longer work with the qemu templates.