header: Update vulkan.hpp to version 1.0.31

Change-Id: Ia81cef98ef59431255e608d3a3faecfc4368ef8d
diff --git a/include/vulkan/vulkan.hpp b/include/vulkan/vulkan.hpp
index f4f2266..42571b4 100644
--- a/include/vulkan/vulkan.hpp
+++ b/include/vulkan/vulkan.hpp
@@ -40,7 +40,7 @@
 # include <vector>
 #endif /*VULKAN_HPP_DISABLE_ENHANCED_MODE*/
 
-static_assert( VK_HEADER_VERSION ==  30 , "Wrong VK_HEADER_VERSION!" );
+static_assert( VK_HEADER_VERSION ==  31 , "Wrong VK_HEADER_VERSION!" );
 
 // 32-bit vulkan is not typesafe for handles, so don't allow copy constructors on this platform by default.
 // To enable this feature on 32-bit platforms please define VULKAN_HPP_TYPESAFE_CONVERSION