### 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
case Variant::RECT2I: {
			EditorPropertyRect2i *editor = memnew(EditorPropertyRect2i(p_wide));
			EditorPropertyRangeHint hint = _parse_range_hint(p_hint, p_hint_text, 1);
			editor->setup(hint.min, hint.max, hint.suffix);
			return editor;
		} break;
		case Variant::VECTOR3: {
			EditorPropertyVector3 *editor = memnew(EditorPropertyVector3(p_wide));
			EditorPropertyRangeHint hint = _parse_range_hint(p_hint, p_hint_text, default_float_step);
			editor->setup(hint.min, hint.max, hint.step, hint.hide_slider, p_hint == PROPERTY_HINT_LINK, hint.suffix, hint.radians);
			return editor;
		} break;
		case Variant::VECTOR3I: {
			EditorPropertyVector3i *editor = memnew(EditorPropertyVector3i(p_wide));
			EditorPropertyRangeHint hint = _parse_range_hint(p_hint, p_hint_text, 1);
			editor->setup(hint.min, hint.max, p_hint == PROPERTY_HINT_LINK, hint.suffix);
			return editor;
		} break;
		case Variant::VECTOR4: {
			EditorPropertyVector4 *editor = memnew(EditorPropertyVector4);
			EditorPropertyRangeHint hint = _parse_range_hint(p_hint, p_hint_text, default_float_step);
			editor->setup(hint.min, hint.max, hint.step, hint.hide_slider, hint.suffix);
			return editor;
		} break;
		case Variant::VECTOR4I: {
			EditorPropertyVector4i *editor = memnew(EditorPropertyVector4i);
			EditorPropertyRangeHint hint = _parse_range_hint(p_hint, p_hint_text, 1);
			editor->setup(hint.min, hint.max, hint.suffix);
			return editor;
		} break;