Create a job for updating attributes on products.

Job is defined by different action type, which affects how this job will behave. For an upsert, you need to use 'addAndSet' action type, for updating only existing attributes - 'set', for removing attributes - 'remove' and for appending/deducting values on multi-valued attributes - 'append'/'deduct' action types. Please refer to the documentation of ProductAttributeUpdatePayload for more details on action types and their behavior.