The "access" function must return an object in case $return_as_object is TRUE

Problem/Motivation

As of version ^4.1 of VBO, the changes introduced in the issue: https://www.drupal.org/project/views_bulk_operations/issues/3246212 generate conflicts.

These occur because, depending on the interface "/Drupal/Core/Action/Action/ActionInterface.php" in the access function, the return can be an object or a boolean, depending on the argument $return_as_object which by default is set to FALSE.

In case $return_as_object = TRUE, the "VboEnqueue.php" access function should return the object and currently this is not contemplated.

Proposed resolution

Return AccessResult::forbidden when $valid is FALSE, and AccessResult::allowed() when $valid is TRUE, in the case $return_as_object is TRUE. All this it must be done in the access method.