### Godot version

543750a1b3f5696f9ba8e91cb49dc7db05d2ae62

### System information

Windows 10, Vulkan

### Issue description

This is a regression since v4.1.dev4.official [5c2295ff5], I can't bisect atm to find the commit that caused it, maybe https://github.com/godotengine/godot/pull/77651 but that's just a guess.
When a HBoxContainer has a label child, and that label's text is changed, one used to be able to find the new size of the container by using call_deferred, this is no longer the case.

MRP correct behavior (v4.1.dev4.official [5c2295ff5]):
![image](https://github.com/godotengine/godot/assets/115422160/1b4a2b6f-ef19-42c1-b3e5-9f0c499a7a8c)
MRP incorrect (543750a1b3f5696f9ba8e91cb49dc7db05d2ae62):
![image](https://github.com/godotengine/godot/assets/115422160/25b711ae-7c3a-4c48-aff7-383bb8f600c3)




### Steps to reproduce

```gdscript
extends Control

@onready var h_box_container: HBoxContainer = $HBoxContainer
@onready var label: Label = $HBoxContainer/Label

func _ready() -> void:
	label.text = "larger non default text"
	print("h_box_container size.x: ", h_box_container.size.x)
	call_deferred("size_after_text_changed")

func size_after_text_changed() -> void:
	print("deferred h_box_container size.x: ", h_box_container.size.x)
```

### Minimal reproduction project

[call_deferred bug.zip](https://github.com/godotengine/godot/files/11654441/call_deferred.bug.zip)

prev_child = Object::cast_to<Control>(from->get_parent());
			} else {
				prev_child = _prev_control(prev_child);
			}
		}
		if (prev_child == from || prev_child == this) { 
			return (get_focus_mode() == FOCUS_ALL) ? prev_child : nullptr;
		}
		if (prev_child->get_focus_mode() == FOCUS_ALL) {
			return prev_child;
		}
		from = prev_child;
	}
	return nullptr;
}
void Control::set_focus_neighbor(Side p_side, const NodePath &p_neighbor) {
	ERR_MAIN_THREAD_GUARD;
	ERR_FAIL_INDEX((int)p_side, 4);
	data.focus_neighbor[p_side] = p_neighbor;
}
NodePath Control::get_focus_neighbor(Side p_side) const {
	ERR_READ_THREAD_GUARD_V(NodePath());
	ERR_FAIL_INDEX_V((int)p_side, 4, NodePath());
	return data.focus_neighbor[p_side];
}
void Control::set_focus_next(const NodePath &p_next) {
	ERR_MAIN_THREAD_GUARD;
	data.focus_next = p_next;
}
NodePath Control::get_focus_next() const {