Update SerializableTempstoreFactory.php:
requested to merge issue/ctools-3411309:3411309-the-deprecated-serializabletempstorefactory into 8.x-3.x
- drop constructor, because signature is same as parent class
- drop property, because currentUser is declared in parent class
- rewrite return new CoreSharedTempStore($storage, $this->lockBackend, $owner, $this->requestStack, $this->currentUser, $this->expire); to follow parent class signature
Closes #3411309