add JobItem.FinishCode.Completed by fenimore · Pull Request #1577 · tableau/server-client-python

In the docs here: https://help.tableau.com/current/api/rest_api/en-us/REST/rest_api_ref_jobs_tasks_and_schedules.htm#query_job

it writes:

For bridge extract refresh jobs, a finishCode of 0 indicates that the bridge client is assigned to execute the job, while a 3
indicates that the job completed.

So I opened a ticket: #1576

I think this covers the necessary changes, pretty small, I'll look into adding it to the unittest tests but I haven't gotten there yet