Intent of transition_to_stateCompleted_via_stateAccepted_in_one_WFT

All 1 exact test in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 1 test
- server/ 1 test
  - service/ 1 test
    
    history/ 1 test
    
    workflow/ 1 test
    
    update/ 1 test
    
    TestUpdateState/ 1 test
    
    in_stateSent/ 1 test
    
    go.temporal.io/server/service/history/workflow/update/TestUpdateState/in_stateSent/transition_to_stateCompleted_via_stateAccepted_in_one_WFT Introduced here