### 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)

if (!error.is_empty()) {
		return;
	}
	error = p_error;
	if (p_node) {
		err_line = p_node->start_line;
		err_column = p_node->leftmost_column;
	} else {
		err_line = 0;
		err_column = 0;
	}
}
GDScriptDataType GDScriptCompiler::_gdtype_from_datatype(const GDScriptParser::DataType &p_datatype, GDScript *p_owner) {
	if (!p_datatype.is_set() || !p_datatype.is_hard_type()) {
		return GDScriptDataType();
	}
	GDScriptDataType result;
	result.has_type = true;
	switch (p_datatype.kind) {
		case GDScriptParser::DataType::VARIANT: {
			result.has_type = false;
		} break;
		case GDScriptParser::DataType::BUILTIN: {
			result.kind = GDScriptDataType::BUILTIN;
			result.builtin_type = p_datatype.builtin_type;
		} break;
		case GDScriptParser::DataType::NATIVE: {
			result.kind = GDScriptDataType::NATIVE;
			result.native_type = p_datatype.native_type;
			result.builtin_type = p_datatype.builtin_type;