ci: enable ACO tests

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Acked-by: Daniel Schürmann <daniel@schuermann.dev>
Acked-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3521>
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e63539f..7f4e269 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -739,6 +739,7 @@
     VULKAN_DRIVERS: intel,amd,freedreno
     EXTRA_OPTION: >
       -D vulkan-overlay-layer=true
+      -D build-aco-tests=true
       -D werror=true
 
 meson-i386: