### Godot version

4.0.beta13 (caacade56)

### System information

Windows 10

### Issue description

Seems like this was missed in #62011 and #70540. `@export_multiline` should also support the PackedStringArray datatype on top of Array[String] and Dictionary, but it doesn't, instead giving the error `"@export_multiline" annotation requires a variable of type "String" but type "PackedStringArray" was given instead.`

### Steps to reproduce

Create a PackedStringArray with the `@export_multiline` annotation.
```gdscript
@export_multiline var npc_dialog: PackedStringArray
```

### Minimal reproduction project

N/A
}
EditorPropertyPath::EditorPropertyPath() {
	HBoxContainer *path_hb = memnew(HBoxContainer);
	add_child(path_hb);
	path = memnew(LineEdit);
	SET_DRAG_FORWARDING_CDU(path, EditorPropertyPath);
	path->set_structured_text_bidi_override(TextServer::STRUCTURED_TEXT_FILE);
	path_hb->add_child(path);
	path->connect("text_submitted", callable_mp(this, &EditorPropertyPath::_path_selected));
	path->connect("focus_exited", callable_mp(this, &EditorPropertyPath::_path_focus_exited));
	path->set_h_size_flags(SIZE_EXPAND_FILL);
	path_edit = memnew(Button);
	path_edit->set_clip_text(true);
	path_hb->add_child(path_edit);
	add_focusable(path);
	dialog = nullptr;
	path_edit->connect("pressed", callable_mp(this, &EditorPropertyPath::_path_pressed));
}
void EditorPropertyClassName::_set_read_only(bool p_read_only) {
	property->set_disabled(p_read_only);
}
void EditorPropertyClassName::setup(const String &p_base_type, const String &p_selected_type) {
	base_type = p_base_type;
	dialog->set_base_type(base_type);
	selected_type = p_selected_type;
	property->set_text(selected_type);
}
void EditorPropertyClassName::update_property() {