### 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)

bool hard_operation = p_a.is_hard_type() && p_b.is_hard_type();
	bool validated = op_eval != nullptr;
	GDScriptParser::DataType result;
	if (validated) {
		r_valid = true;
		result.type_source = hard_operation ? GDScriptParser::DataType::ANNOTATED_INFERRED : GDScriptParser::DataType::INFERRED;
		result.kind = GDScriptParser::DataType::BUILTIN;
		result.builtin_type = Variant::get_operator_return_type(p_operation, a_type, b_type);
	} else {
		r_valid = !hard_operation;
		result.kind = GDScriptParser::DataType::VARIANT;
	}
	return result;
}
bool GDScriptAnalyzer::is_type_compatible(const GDScriptParser::DataType &p_target, const GDScriptParser::DataType &p_source, bool p_allow_implicit_conversion, const GDScriptParser::Node *p_source_node) {
	
	ERR_FAIL_COND_V_MSG(!p_target.is_set(), true, "Parser bug (please report): Trying to check compatibility of unset target type");
	ERR_FAIL_COND_V_MSG(!p_source.is_set(), true, "Parser bug (please report): Trying to check compatibility of unset value type");
	if (p_target.kind == GDScriptParser::DataType::VARIANT) {
		
		return true;
	}
	if (p_source.kind == GDScriptParser::DataType::VARIANT) {
		
		return true;
	}
	if (p_target.kind == GDScriptParser::DataType::BUILTIN) {
		bool valid = p_source.kind == GDScriptParser::DataType::BUILTIN && p_target.builtin_type == p_source.builtin_type;
		if (!valid && p_allow_implicit_conversion) {
			valid = Variant::can_convert_strict(p_source.builtin_type, p_target.builtin_type);