Release 2.0.9 (#3922)

* fix api definition
* include customer number in validation message
* fix doctrine deprecation, prepare for DBAL 4
* added DataSubscriberInterface to identify certain doctrine subscribers

src/Doctrine/UTCDateTimeType.php

@@ -74,9 +74,4 @@ final class UTCDateTimeType extends DateTimeType
 
         return $converted;
     }
-
-    public function requiresSQLCommentHint(AbstractPlatform $platform): bool
-    {
-        return true;
-    }
 }