Context is not an array when passed from drush

Problem/Motivation

When importing config in drush $context in batched operations is not always an array, although it is typehinted this way.
On php 8.1 this gives an error.

Steps to reproduce

Run config import on site with entity type behaviors enabled.

In ProcessBase.php line 171:
                                                                                                                                                                                                                              
  Unable to decode output into JSON: Syntax error                                                                                                                                                                             
                                                                                                                                                                                                                              
  TypeError: entity_type_behaviors_update_behavior_entity_types(): Argument #1 ($context) must be of type array, DrushBatchContext given in entity_type_behaviors_update_behavior_entity_types() (line 167 of /var/www/html/  
  docroot/modules/contrib/entity_type_behaviors/entity_type_behaviors.module).      

Proposed resolution

Remove the typehints.