Fix issue with dynamic array fields in PHP 8.2

[mdio]

Would issue "Indirect modification of overloaded property has no effect" in Unmarshaller.php:353 and not set the value otherwise.

The problem is that

$this->{$field}[$k] = $this->buildScalarValue($field, $v, $type, false);

will first call AbstractModel::__get($field) and then AbstractModel::__set($field) with [$k] modified and not AbstractModel::__set($field[$k]) immediately.
Because __get(() didn't return a reference, the __set() didn't have an actual effect.

I went with return the value from __get() via reference, because it needed only a few lines of changes.

Another option would have been to build up the array (call it e.g. $unmarshalledArray) for $field in unmarshalArray() and issue one $this->{$field} = $unmarshalledArray;. This would bypass __get() and immediately call __set(), avoiding the issue as well.

[dcarbone]

@mdio sorry its taken a little while, but I've released v2.0.0 that drops support for php 7, and includes a fix for this issue.

Please try that release and let me know if that works for you.

[mdio]

Hey @dcarbone, sorry for the delay. I was able to update to v2.0.0 today and can confirm that it works and doesn't have any deprecation warnings while running on PHP 8.2.
Thank you!

Since the problem has been fixed, I'm closing this PR.