ci: glsl timeouts
I've seen this twice today
https://gitlab.freedesktop.org/mesa/mesa/-/jobs/23537954 https://gitlab.freedesktop.org/mesa/mesa/-/jobs/23544583
I've seen this twice today
https://gitlab.freedesktop.org/mesa/mesa/-/jobs/23537954 https://gitlab.freedesktop.org/mesa/mesa/-/jobs/23544583