ci: Have LAVA jobs use same dEQP runner as the rest of Mesa
We can drop some LAVA-specific stuff, and make it easier to drop more further on. The goal is to not have any LAVA-specific jobs in the container and build stages.
We can drop some LAVA-specific stuff, and make it easier to drop more further on. The goal is to not have any LAVA-specific jobs in the container and build stages.