Intent of allows_expected_retained_objects

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
  - common/ 2 tests
    
    testing/ 2 tests
    
    objectleak/ 2 tests
    
    TestObjectLeak_Check/ 2 tests
    
    go.temporal.io/server/common/testing/objectleak/TestObjectLeak_Check/allows_expected_retained_objects Introduced here
    
    go.temporal.io/server/common/testing/objectleak/TestObjectLeak_Check/fails_stale_prune Inherited report.go ×3