CI: Trigger Windows builds for llvmpipe & Vulkan changes

As Windows now builds llvmpipe and lavapipe, we should be sure to run
their builds when these change.

Acked-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9518>
1 file changed