### Godot version

4.0beta14

### System information

Windows 10

### Issue description

Returned Array value isn't converted to Packed*Array

### Steps to reproduce

```
var string_array: PackedStringArray = ["test"] # valid
var int_array: PackedInt32Array = [3] # valid

func get_packed_string_array() -> PackedStringArray:
	return ["test"] #error


func get_packed_int_array() -> PackedInt32Array:
	return [3] #error
```

Line 8:Cannot return value of type "Array" because the function return type is "PackedStringArray".
Line 12:Cannot return value of type "Array" because the function return type is "PackedInt32Array".

### Minimal reproduction project

[return_bug.zip](https://github.com/godotengine/godot/files/10490367/return_bug.zip)

member.m_enum->set_datatype(resolving_datatype);
				GDScriptParser::DataType enum_type = make_enum_type(member.m_enum->identifier->name, p_class->fqcn, true);
				const GDScriptParser::EnumNode *prev_enum = current_enum;
				current_enum = member.m_enum;
				Dictionary dictionary;
				for (int j = 0; j < member.m_enum->values.size(); j++) {
					GDScriptParser::EnumNode::Value &element = member.m_enum->values.write[j];
					if (element.custom_value) {
						reduce_expression(element.custom_value);
						if (!element.custom_value->is_constant) {
							push_error(R"(Enum values must be constant.)", element.custom_value);
						} else if (element.custom_value->reduced_value.get_type() != Variant::INT) {
							push_error(R"(Enum values must be integers.)", element.custom_value);
						} else {
							element.value = element.custom_value->reduced_value;
							element.resolved = true;
						}
					} else {
						if (element.index > 0) {
							element.value = element.parent_enum->values[element.index - 1].value + 1;
						} else {
							element.value = 0;
						}
						element.resolved = true;
					}
					enum_type.enum_values[element.identifier->name] = element.value;
					dictionary[String(element.identifier->name)] = element.value;
				}
				current_enum = prev_enum;
				dictionary.make_read_only();