Intent of on_stateAccepted_fires_callbacks_and_returns_true, different_requestID_on_stateAccepted_creates_event_normally

All 2 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 2 tests
- server/ 2 tests
  - service/ 2 tests
    
    history/ 2 tests
    
    workflow/ 2 tests
    
    update/ 2 tests
    
    TestAttachCallbacks/ 2 tests
    
    go.temporal.io/server/service/history/workflow/update/TestAttachCallbacks/different_requestID_on_stateAccepted_creates_event_normally Introduced here
    
    go.temporal.io/server/service/history/workflow/update/TestAttachCallbacks/on_stateAccepted_fires_callbacks_and_returns_true Introduced here