Thunks/libvulkan: Fixes print for 32-bit

Value passed in to this print will be 32-bit or 64-bit depending on
arch.

Noticed this while tinkering around and is easy enough to solve today.

ThunkLibs/libvulkan/Guest.cpp

@@ -56,7 +56,7 @@ static PFN_vkVoidFunction MakeGuestCallable(const char* origin, PFN_vkVoidFuncti
         }
         return nullptr;
     }
-    fprintf(stderr, "Linking address %p to host invoker %#lx\n", func, It->second);
+    fprintf(stderr, "Linking address %p to host invoker %#zx\n", func, It->second);
     LinkAddressToFunction((uintptr_t)func, It->second);
     return func;
 }