### 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
int64_t val = get_edited_object()->get(get_edited_property());
	setting = true;
	spin->set_value(val);
	setting = false;
#ifdef DEBUG_ENABLED
	
	if (val != (int64_t)(double)(val)) {
		WARN_PRINT("Cannot reliably represent '" + itos(val) + "' in the inspector, value is too large.");
	}
#endif
}
void EditorPropertyInteger::_bind_methods() {
}
void EditorPropertyInteger::setup(int64_t p_min, int64_t p_max, int64_t p_step, bool p_hide_slider, bool p_allow_greater, bool p_allow_lesser, const String &p_suffix) {
	spin->set_min(p_min);
	spin->set_max(p_max);
	spin->set_step(p_step);
	spin->set_hide_slider(p_hide_slider);
	spin->set_allow_greater(p_allow_greater);
	spin->set_allow_lesser(p_allow_lesser);
	spin->set_suffix(p_suffix);
}
EditorPropertyInteger::EditorPropertyInteger() {
	spin = memnew(EditorSpinSlider);
	spin->set_flat(true);
	add_child(spin);
	add_focusable(spin);
	spin->connect("value_changed", callable_mp(this, &EditorPropertyInteger::_value_changed));
}
void EditorPropertyObjectID::_set_read_only(bool p_read_only) {