### 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
WhileNode *n_while = alloc_node<WhileNode>();
	n_while->condition = parse_expression(false);
	if (n_while->condition == nullptr) {
		push_error(R"(Expected conditional expression after "while".)");
	}
	consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" after "while" condition.)");
	
	bool could_break = can_break;
	bool could_continue = can_continue;
	
	can_break = true;
	can_continue = true;
	n_while->loop = parse_suite(R"("while" block)");
	n_while->loop->is_loop = true;
	complete_extents(n_while);
	
	can_break = could_break;
	can_continue = could_continue;
	return n_while;
}
GDScriptParser::ExpressionNode *GDScriptParser::parse_precedence(Precedence p_precedence, bool p_can_assign, bool p_stop_on_assign) {
	
	
	switch (current.type) {
		case GDScriptTokenizer::Token::PARENTHESIS_OPEN:
		case GDScriptTokenizer::Token::BRACE_OPEN:
		case GDScriptTokenizer::Token::BRACKET_OPEN:
			push_multiline(true);