ci: bump from Debian 11 (bullseye) to 12 (bookworm)

Already in hard-freeze, so we don't have to worry about breaking changes.

Significant changes:
 - LLVM 15 is used instead of 11 or 13
 - /dev/shm has to be manually mounted
 - Debian 12 uses libdrm 2.4.114
 - reworked creating of rootfs, from debootstrap to mmdebstrap
 - split `create-rootfs.sh` into `lava_build.sh`, `setup-rootfs.sh`, and `strip-rootfs.sh`
 - dropped winehq repository for now (Debian wine is up-to-date enough)
 - we use wine now, no need to call explicitly call wine64
 - bumped libasan from version 6 to 8

Signed-off-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21977>

src/gallium/drivers/softpipe/ci/softpipe-fails.txt

@@ -1274,4 +1274,4 @@ spec@!opengl 1.0@depth-clear-precision-check,Fail
 spec@!opengl 1.0@depth-clear-precision-check@depth32,Fail
 spec@arb_texture_buffer_object@texture-buffer-size-clamp,Fail
 
-
+spec@nv_shader_atomic_float@execution@ssbo-atomicexchange-float,Fail