### 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
break;
		case GDScriptTokenizer::Token::WHILE:
			advance();
			result = parse_while();
			break;
		case GDScriptTokenizer::Token::MATCH:
			advance();
			result = parse_match();
			break;
		case GDScriptTokenizer::Token::BREAK:
			advance();
			result = parse_break();
			break;
		case GDScriptTokenizer::Token::CONTINUE:
			advance();
			result = parse_continue();
			break;
		case GDScriptTokenizer::Token::RETURN: {
			advance();
			ReturnNode *n_return = alloc_node<ReturnNode>();
			if (!is_statement_end()) {
				if (current_function && current_function->identifier->name == GDScriptLanguage::get_singleton()->strings._init) {
					push_error(R"(Constructor cannot return a value.)");
				}
				n_return->return_value = parse_expression(false);
			} else if (in_lambda && !is_statement_end_token()) {
				
				
				n_return->return_value = parse_expression(false);
			}