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/Constants.php

@@ -17,11 +17,11 @@ class Constants
     /**
      * The current release version
      */
-    public const VERSION = '2.0.8';
+    public const VERSION = '2.0.9';
     /**
      * The current release: major * 10000 + minor * 100 + patch
      */
-    public const VERSION_ID = 20008;
+    public const VERSION_ID = 20009;
     /**
      * The software name
      */