### 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)

}
		case SHADOWED_GLOBAL_IDENTIFIER: {
			CHECK_SYMBOLS(3);
			return vformat(R"(The %s '%s' has the same name as a %s.)", symbols[0], symbols[1], symbols[2]);
		}
		case INT_AS_ENUM_WITHOUT_CAST: {
			return "Integer used when an enum value is expected. If this is intended cast the integer to the enum type.";
		}
		case INT_AS_ENUM_WITHOUT_MATCH: {
			CHECK_SYMBOLS(3);
			return vformat(R"(Cannot %s %s as Enum "%s": no enum member has matching value.)", symbols[0], symbols[1], symbols[2]);
		} break;
		case STATIC_CALLED_ON_INSTANCE: {
			CHECK_SYMBOLS(2);
			return vformat(R"(The function '%s()' is a static function but was called from an instance. Instead, it should be directly called from the type: '%s.%s()'.)", symbols[0], symbols[1], symbols[0]);
		}
		case CONFUSABLE_IDENTIFIER: {
			CHECK_SYMBOLS(1);
			return vformat(R"(The identifier "%s" has misleading characters and might be confused with something else.)", symbols[0]);
		}
		case RENAMED_IN_GD4_HINT: {
			break; 
		}
		case WARNING_MAX:
			break; 
	}
	ERR_FAIL_V_MSG(String(), "Invalid GDScript warning code: " + get_name_from_code(code) + ".");
#undef CHECK_SYMBOLS
}
int GDScriptWarning::get_default_value(Code p_code) {