### 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)

List<GDScriptParser::DataType> par_types;
			int default_arg_count = 0;
			bool is_static = false;
			bool is_vararg = false;
			if (get_function_signature(p_for->list, false, list_type, CoreStringNames::get_singleton()->_iter_get, return_type, par_types, default_arg_count, is_static, is_vararg)) {
				variable_type = return_type;
				variable_type.type_source = list_type.type_source;
			} else if (!list_type.is_hard_type()) {
				variable_type.kind = GDScriptParser::DataType::VARIANT;
			} else {
				push_error(vformat(R"(Unable to iterate on object of type "%s".)", list_type.to_string()), p_for->list);
			}
		} else if (list_type.builtin_type == Variant::ARRAY || list_type.builtin_type == Variant::DICTIONARY || !list_type.is_hard_type()) {
			variable_type.kind = GDScriptParser::DataType::VARIANT;
		} else {
			push_error(vformat(R"(Unable to iterate on value of type "%s".)", list_type.to_string()), p_for->list);
		}
	}
	if (p_for->variable) {
		p_for->variable->set_datatype(variable_type);
	}
	resolve_suite(p_for->loop);
	p_for->set_datatype(p_for->loop->get_datatype());
#ifdef DEBUG_ENABLED
	if (p_for->variable) {
		is_shadowing(p_for->variable, R"("for" iterator variable)");
	}
#endif
}
void GDScriptAnalyzer::resolve_while(GDScriptParser::WhileNode *p_while) {