add-field crashes

Reason for problem is field_type: gdpr_task_item

The field removal_log in module gdpr_tasks uses a fieldtype with ID gdpr_task_item which is not in the code at all.
That is the reason for "The plugin (GDPR) did not specify an instance class." in the above mentioned doGetDefinition.
I.e the use of gdpr_task_item exists but nothing is defining it like
(@FieldType(id = "gdpr_task_item"))

Reason is that in Drupal 11.x using a translatable string as a category for field type is deprecated, also field_category.yml is needed.

Here is a patch

Thanks!