Fix Vulkan crash with many Omni/SpotLights, Decals or ReflectionProbes

(cherry picked from commit d6f45e4f1429f4867f02e1070c7609b34e90f4bd)

servers/rendering/renderer_rd/cluster_builder_rd.cpp

@@ -285,7 +285,7 @@ void ClusterBuilderRD::setup(Size2i p_screen_size, uint32_t p_max_elements, RID
 	cluster_render_buffer = RD::get_singleton()->storage_buffer_create(cluster_render_buffer_size);
 	cluster_buffer = RD::get_singleton()->storage_buffer_create(cluster_buffer_size);
 
-	render_elements = static_cast<RenderElementData *>(memalloc(sizeof(RenderElementData *) * render_element_max));
+	render_elements = static_cast<RenderElementData *>(memalloc(sizeof(RenderElementData) * render_element_max));
 	render_element_count = 0;
 
 	element_buffer = RD::get_singleton()->storage_buffer_create(sizeof(RenderElementData) * render_element_max);