### 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
}
			}
			elements[item.identifier->name] = item.line;
			if (match(GDScriptTokenizer::Token::EQUAL)) {
				ExpressionNode *value = parse_expression(false);
				if (value == nullptr) {
					push_error(R"(Expected expression value after "=".)");
				}
				item.custom_value = value;
			}
			item.index = enum_node->values.size();
			enum_node->values.push_back(item);
			if (!named) {
				
				current_class->add_member(item);
			}
		}
	} while (match(GDScriptTokenizer::Token::COMMA));
	pop_multiline();
	consume(GDScriptTokenizer::Token::BRACE_CLOSE, R"(Expected closing "}" for enum.)");
#ifdef TOOLS_ENABLED
	
	for (int i = 0; i < enum_node->values.size(); i++) {
		if (i == enum_node->values.size() - 1) {
			
			if (enum_node->values[i].line != previous.start_line && has_comment(enum_node->values[i].line)) {
				if (named) {
					enum_node->values.write[i].doc_description = get_doc_comment(enum_node->values[i].line, true);
				} else {
					current_class->set_enum_value_doc(enum_node->values[i].identifier->name, get_doc_comment(enum_node->values[i].line, true));