CMP-85 - PHP 7.3 compatibility

Author: Ivan Tagil

Observer/AdditionalDataAssignObserver.php

@@ -23,7 +23,7 @@ class AdditionalDataAssignObserver extends AbstractDataAssignObserver
     /**
      * @var array
      */
-    protected array $additionalInformationList = [
+    protected $additionalInformationList = [
         self::SELECTED_ISSUER,
         self::IBAN,
     ];