quick_shader is for some reason now excruciatingly slow on the Microsoft runners, but fine on the GStreamer runners. Until we can figure out why this is happening - 27min runtimes instead of 3min - just keep them over there. Dozen is miraculously unaffected. Signed-off-by: Daniel Stone <daniels@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34280>