### 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
options->set_clip_text(p_enable);
}
void EditorPropertyEnum::_bind_methods() {
}
EditorPropertyEnum::EditorPropertyEnum() {
	options = memnew(OptionButton);
	options->set_clip_text(true);
	options->set_flat(true);
	add_child(options);
	add_focusable(options);
	options->connect("item_selected", callable_mp(this, &EditorPropertyEnum::_option_selected));
}
void EditorPropertyFlags::_set_read_only(bool p_read_only) {
	for (CheckBox *check : flags) {
		check->set_disabled(p_read_only);
	}
}
void EditorPropertyFlags::_flag_toggled(int p_index) {
	uint32_t value = get_edited_object()->get(get_edited_property());
	if (flags[p_index]->is_pressed()) {
		value |= flag_values[p_index];
	} else {
		value &= ~flag_values[p_index];
	}
	emit_changed(get_edited_property(), value);
}
void EditorPropertyFlags::update_property() {