### 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 CONSTANT:
			return constant->get_datatype();
		case VARIABLE:
			return variable->get_datatype();
		case PARAMETER:
			return parameter->get_datatype();
		case FOR_VARIABLE:
		case PATTERN_BIND:
			return bind->get_datatype();
		case UNDEFINED:
			return DataType();
	}
	return DataType();
}
String GDScriptParser::SuiteNode::Local::get_name() const {