Bump Vulkan serialise version silently

* We just need to prevent new serialised captures from being loaded in old
  versions of RenderDoc.

renderdoc/driver/vulkan/vk_common.cpp

@@ -237,7 +237,11 @@ bool VkInitParams::IsSupportedVersion(uint64_t ver)
   if(ver == CurrentVersion)
     return true;
 
-  // we can check other older versions we support here.
+  // 0xB -> 0xC - generally this is when we started serialising pNext chains that older RenderDoc
+  // couldn't support. But we don't need any special backwards compatibiltiy code as it's just added
+  // serialisation.
+  if(ver == 0xB)
+    return true;
 
   return false;
 }

renderdoc/driver/vulkan/vk_core.h

@@ -55,7 +55,7 @@ struct VkInitParams
   uint32_t GetSerialiseSize();
 
   // check if a frame capture section version is supported
-  static const uint64_t CurrentVersion = 0xB;
+  static const uint64_t CurrentVersion = 0xC;
   static bool IsSupportedVersion(uint64_t ver);
 };