### 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
if (!can_break) {
		push_error(R"(Cannot use "break" outside of a loop.)");
	}
	BreakNode *break_node = alloc_node<BreakNode>();
	complete_extents(break_node);
	end_statement(R"("break")");
	return break_node;
}
GDScriptParser::ContinueNode *GDScriptParser::parse_continue() {
	if (!can_continue) {
		push_error(R"(Cannot use "continue" outside of a loop.)");
	}
	current_suite->has_continue = true;
	ContinueNode *cont = alloc_node<ContinueNode>();
	complete_extents(cont);
	end_statement(R"("continue")");
	return cont;
}
GDScriptParser::ForNode *GDScriptParser::parse_for() {
	ForNode *n_for = alloc_node<ForNode>();
	if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected loop variable name after "for".)")) {
		n_for->variable = parse_identifier();
	}
	consume(GDScriptTokenizer::Token::IN, R"(Expected "in" after "for" variable name.)");
	n_for->list = parse_expression(false);
	if (!n_for->list) {
		push_error(R"(Expected a list or range after "in".)");
	}