### 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
CallNode *call = alloc_node<CallNode>();
	reset_extents(call, p_previous_operand);
	if (previous.type == GDScriptTokenizer::Token::SUPER) {
		
		call->is_super = true;
		push_multiline(true);
		if (match(GDScriptTokenizer::Token::PARENTHESIS_OPEN)) {
			
			if (current_function == nullptr) {
				push_error(R"(Cannot use implicit "super" call outside of a function.)");
				pop_multiline();
				complete_extents(call);
				return nullptr;
			}
			if (current_function->identifier) {
				call->function_name = current_function->identifier->name;
			} else {
				call->function_name = SNAME("<anonymous>");
			}
		} else {
			consume(GDScriptTokenizer::Token::PERIOD, R"(Expected "." or "(" after "super".)");
			make_completion_context(COMPLETION_SUPER_METHOD, call, true);
			if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected function name after ".".)")) {
				pop_multiline();
				complete_extents(call);
				return nullptr;
			}
			IdentifierNode *identifier = parse_identifier();