### 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)

ERR_FAIL_COND((p_state.size() <= 0) ||
			!p_state.has("rotation") || !p_state.has("scale") ||
			!p_state.has("pivot") || !p_state.has("anchors") || !p_state.has("offsets") ||
			!p_state.has("layout_mode") || !p_state.has("anchors_layout_preset"));
	Dictionary state = p_state;
	set_rotation(state["rotation"]);
	set_scale(state["scale"]);
	set_pivot_offset(state["pivot"]);
	Array anchors = state["anchors"];
	
	LayoutMode _layout = (LayoutMode)(int)state["layout_mode"];
	if (_layout == LayoutMode::LAYOUT_MODE_POSITION) {
		bool anchors_mode = ((real_t)anchors[0] != 0.0 || (real_t)anchors[1] != 0.0 || (real_t)anchors[2] != 0.0 || (real_t)anchors[3] != 0.0);
		if (anchors_mode) {
			_layout = LayoutMode::LAYOUT_MODE_ANCHORS;
		}
	}
	_set_layout_mode(_layout);
	if (_layout == LayoutMode::LAYOUT_MODE_ANCHORS || _layout == LayoutMode::LAYOUT_MODE_UNCONTROLLED) {
		_set_anchors_layout_preset((int)state["anchors_layout_preset"]);
	}
	data.anchor[SIDE_LEFT] = anchors[0];
	data.anchor[SIDE_TOP] = anchors[1];
	data.anchor[SIDE_RIGHT] = anchors[2];
	data.anchor[SIDE_BOTTOM] = anchors[3];
	Array offsets = state["offsets"];
	data.offset[SIDE_LEFT] = offsets[0];
	data.offset[SIDE_TOP] = offsets[1];
	data.offset[SIDE_RIGHT] = offsets[2];
	data.offset[SIDE_BOTTOM] = offsets[3];