### 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
function->parameters_indices[parameter->identifier->name] = 0;
				function->parameters.push_back(parameter);
			}
			complete_extents(parameter);
			consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected ")" after parameter name.)*");
			consume(GDScriptTokenizer::Token::COLON, R"*(Expected ":" after ")".)*");
			FunctionNode *previous_function = current_function;
			current_function = function;
			if (p_variable->setter_parameter != nullptr) {
				SuiteNode *body = alloc_node<SuiteNode>();
				body->add_local(parameter, function);
				function->body = parse_suite("setter declaration", body);
				p_variable->setter = function;
			}
			current_function = previous_function;
			complete_extents(function);
			break;
		}
		case VariableNode::PROP_SETGET:
			consume(GDScriptTokenizer::Token::EQUAL, R"(Expected "=" after "set")");
			make_completion_context(COMPLETION_PROPERTY_METHOD, p_variable);
			if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected setter function name after "=".)")) {
				p_variable->setter_pointer = parse_identifier();
			}
			break;
		case VariableNode::PROP_NONE:
			break; 
	}
}
void GDScriptParser::parse_property_getter(VariableNode *p_variable) {