### 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
head = alloc_node<ClassNode>();
	head->fqcn = script_path;
	current_class = head;
	bool can_have_class_or_extends = true;
	while (match(GDScriptTokenizer::Token::ANNOTATION)) {
		AnnotationNode *annotation = parse_annotation(AnnotationInfo::SCRIPT | AnnotationInfo::STANDALONE | AnnotationInfo::CLASS_LEVEL);
		if (annotation != nullptr) {
			if (annotation->applies_to(AnnotationInfo::SCRIPT)) {
				
				if (annotation->name == SNAME("@icon")) {
					annotation->apply(this, head);
				} else {
					head->annotations.push_back(annotation);
				}
			} else {
				annotation_stack.push_back(annotation);
				
				
				
				can_have_class_or_extends = false;
				break;
			}