### 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 < 2; i++) {
		if (function->name == SNAME("set")) {
			if (setter_used) {
				push_error(R"(Properties can only have one setter.)");
			} else {
				parse_property_setter(property);
				setter_used = true;
			}
		} else if (function->name == SNAME("get")) {
			if (getter_used) {
				push_error(R"(Properties can only have one getter.)");
			} else {
				parse_property_getter(property);
				getter_used = true;
			}
		} else {
			
			push_error(R"(Expected "get" or "set" for property declaration.)");
		}
		if (i == 0 && p_variable->property == VariableNode::PROP_SETGET) {
			if (match(GDScriptTokenizer::Token::COMMA)) {
				
				if (match(GDScriptTokenizer::Token::NEWLINE)) {
					if (!p_need_indent) {
						push_error(R"(Inline setter/getter setting cannot span across multiple lines (use "\\"" if needed).)");
					}
				}
			} else {
				break;