The test suite is full of flakes around transform feedback, atomics, and
tess. But, I hope it can be useful for regression testing core Mesa
reworks.
This required updating the kernel to 5.16.12 to get a more stable boot
process. That kernel rebuild caused an update of the container with
piglit which that was missed in a previous MR, so we got new xfails in x86
swrast.
Acked-by: Ilia Mirkin <imirkin@alum.mit.edu> (nouveau)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15201>
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