### Godot version

v4.0.beta11.official [91713ced8]

### System information

macOS 13.1

### Issue description

When using a function with a return type of `void` as the return value of another function with a return type of `void`, the following error occurs: 
> Cannot get return value of call to "foo()" because it returns "void"

This wasn't a problem in Godot 3.x and Godot 4.x until now. Seems it's related to https://github.com/godotengine/godot/pull/70702. 

I understand why this is happening, but I'd expect to be able to use functions like this that return `void` because they both use the matching return type. It seems overly strict.

In a real world example I use this to return early when switching states in a FSM:

```gdscript
func _process(_delta: float) -> void:
  if player.is_grounded():
    return state_machine.transition_to("ground") # returns void

  if player.is_on_wall():
    return state_machine.transition_to("wall") # returns void
```

### Steps to reproduce

```gdscript
extends Node

func foo() -> void:
	print("hello")

func _ready() -> void:
	return foo()
```

### Minimal reproduction project

[godot_4_return_value_regression.zip](https://github.com/godotengine/godot/files/10385377/godot_4_return_value_regression.zip)

reduce_expression(p_assignment->assignee);
	reduce_expression(p_assignment->assigned_value);
	if (p_assignment->assigned_value == nullptr || p_assignment->assignee == nullptr) {
		return;
	}
	GDScriptParser::DataType assignee_type = p_assignment->assignee->get_datatype();
	if (assignee_type.is_constant || (p_assignment->assignee->type == GDScriptParser::Node::SUBSCRIPT && static_cast<GDScriptParser::SubscriptNode *>(p_assignment->assignee)->base->is_constant)) {
		push_error("Cannot assign a new value to a constant.", p_assignment->assignee);
	}
	
	if (p_assignment->assigned_value->type == GDScriptParser::Node::ARRAY && assignee_type.has_container_element_type()) {
		update_array_literal_element_type(static_cast<GDScriptParser::ArrayNode *>(p_assignment->assigned_value), assignee_type.get_container_element_type());
	}