### 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
for (int i = 0; i < p_suite->statements.size(); i++) {
		print_statement(p_suite->statements[i]);
	}
}
void GDScriptParser::TreePrinter::print_ternary_op(TernaryOpNode *p_ternary_op) {
	
	push_text("(");
	print_expression(p_ternary_op->true_expr);
	push_text(") IF (");
	print_expression(p_ternary_op->condition);
	push_text(") ELSE (");
	print_expression(p_ternary_op->false_expr);
	push_text(")");
}
void GDScriptParser::TreePrinter::print_type(TypeNode *p_type) {
	if (p_type->type_chain.is_empty()) {
		push_text("Void");
	} else {
		for (int i = 0; i < p_type->type_chain.size(); i++) {
			if (i > 0) {
				push_text(".");
			}
			print_identifier(p_type->type_chain[i]);
		}
	}
}
void GDScriptParser::TreePrinter::print_unary_op(UnaryOpNode *p_unary_op) {