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.
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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.