### 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
for (int i = 0; i < 9; i++) {
		spin[i]->set_min(p_min);
		spin[i]->set_max(p_max);
		spin[i]->set_step(p_step);
		spin[i]->set_hide_slider(p_hide_slider);
		spin[i]->set_allow_greater(true);
		spin[i]->set_allow_lesser(true);
		
		
		spin[i]->set_suffix(p_suffix);
	}
}
EditorPropertyBasis::EditorPropertyBasis() {
	GridContainer *g = memnew(GridContainer);
	g->set_columns(3);
	add_child(g);
	static const char *desc[9] = { "xx", "xy", "xz", "yx", "yy", "yz", "zx", "zy", "zz" };
	for (int i = 0; i < 9; i++) {
		spin[i] = memnew(EditorSpinSlider);
		spin[i]->set_label(desc[i]);
		spin[i]->set_flat(true);
		g->add_child(spin[i]);
		spin[i]->set_h_size_flags(SIZE_EXPAND_FILL);
		add_focusable(spin[i]);
		spin[i]->connect("value_changed", callable_mp(this, &EditorPropertyBasis::_value_changed).bind(desc[i]));
	}
	set_bottom_editor(g);
}
void EditorPropertyTransform3D::_set_read_only(bool p_read_only) {