### 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)

p_script->implicit_ready = nullptr;
	p_script->clearing = false;
	p_script->tool = parser->is_tool();
	if (!p_script->name.is_empty()) {
		if (ClassDB::class_exists(p_script->name) && ClassDB::is_class_exposed(p_script->name)) {
			_set_error("The class '" + p_script->name + "' shadows a native class", p_class);
			return ERR_ALREADY_EXISTS;
		}
	}
	GDScriptDataType base_type = _gdtype_from_datatype(p_class->base_type, p_script);
	
	switch (base_type.kind) {
		case GDScriptDataType::NATIVE: {
			int native_idx = GDScriptLanguage::get_singleton()->get_global_map()[base_type.native_type];
			p_script->native = GDScriptLanguage::get_singleton()->get_global_array()[native_idx];
			ERR_FAIL_COND_V(p_script->native.is_null(), ERR_BUG);
		} break;
		case GDScriptDataType::GDSCRIPT: {
			Ref<GDScript> base = Ref<GDScript>(base_type.script_type);
			if (base.is_null()) {
				return ERR_COMPILATION_FAILED;
			}
			if (main_script->has_class(base.ptr())) {
				Error err = _populate_class_members(base.ptr(), p_class->base_type.class_type, p_keep_state);
				if (err) {
					return err;
				}
			} else if (!base->is_valid()) {
				Error err = OK;
				Ref<GDScript> base_root = GDScriptCache::get_full_script(base->path, err, p_script->path);