### 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
switch (type) {
		case SuiteNode::Local::PARAMETER:
			return "parameter";
		case SuiteNode::Local::CONSTANT:
			return "constant";
		case SuiteNode::Local::VARIABLE:
			return "variable";
		case SuiteNode::Local::FOR_VARIABLE:
			return "for loop iterator";
		case SuiteNode::Local::PATTERN_BIND:
			return "pattern_bind";
		case SuiteNode::Local::UNDEFINED:
			return "<undefined>";
		default:
			return String();
	}
}
String GDScriptParser::DataType::to_string() const {