Intent of nil_TimeSkippingInfo_returns_immediately_without_touching_timers

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
    
    TestTaskGeneratorImpl_RegenerateTimerTasksForTimeSkipping_EdgeCases/ 1 test
    
    go.temporal.io/server/service/history/workflow/TestTaskGeneratorImpl_RegenerateTimerTasksForTimeSkipping_EdgeCases/nil_TimeSkippingInfo_returns_immediately_without_touching_timers Introduced here