ci: print a message when vk3d-proton returns successfully

To detect if an error occured.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Martin Roukala <martin.roukala@mupuf.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17050>

.gitlab-ci/vkd3d-proton/run.sh

@@ -85,6 +85,7 @@ else
 fi
 
 if diff -q ".gitlab-ci/vkd3d-proton/$VKD3D_PROTON_RESULTS.txt.baseline" "$RESULTSFILE"; then
+    echo "SUCCESS: No changes found!"
     exit 0
 fi