[gnome-build-meta/gtk-no-vulkan] Build GTK without Vulkan support

[Matthias Clasen <matthiasc src gnome org>]

commit 00b5bb7be90fef2d5560d4d280b5c4a822e31d95
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jul 19 21:15:50 2021 -0400

    Build GTK without Vulkan support
    
    The Vulkan renderer is experimental, and the Vulkan support
    has the tendency to crash when you open the inspector, so
    it is negatively affecting people even if they are not
    using Vulkan.

 elements/sdk/gtk.bst | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/elements/sdk/gtk.bst b/elements/sdk/gtk.bst
index 8d844dd2..98966869 100644
--- a/elements/sdk/gtk.bst
+++ b/elements/sdk/gtk.bst
@@ -37,6 +37,7 @@ variables:
     -Dbroadway-backend=true
     -Dmedia-ffmpeg=disabled
     -Dprint-cloudprint=disabled
+    -Dvulkan=disabled
     -Dprofiler=true
 
 public: