Fix link to DBAL types

Documentation has been moved, old reference landing on 404.
Pointed to 2.x as for the moment we end up with 2.x because of many other package dependencies.

Author: Madalin Ignisca

config/ide-helper.php

@@ -206,7 +206,7 @@
     | The value of the array is an array of type mappings. Key is the name of the custom type,
     | (for example, "jsonb" from Postgres 9.4) and the value is the name of the corresponding Doctrine2 type (in
     | our case it is 'json_array'. Doctrine types are listed here:
-    | http://doctrine-dbal.readthedocs.org/en/latest/reference/types.html
+    | https://www.doctrine-project.org/projects/doctrine-dbal/en/2.12/reference/types.html#types
     |
     | So to support jsonb in your models when working with Postgres, just add the following entry to the array below:
     |