Intent of edge_case:_60%_declined_serving_exceeds_minimum_threshold

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
    
    frontend/ 2 tests
    
    TestHealthCheckerSuite/ 2 tests
    
    Test_Check_Mixed_Host_States_Edge_Cases/ 1 test
    
    go.temporal.io/server/service/frontend/TestHealthCheckerSuite/Test_Check_Mixed_Host_States_Edge_Cases/edge_case:_60%_declined_serving_exceeds_minimum_threshold Introduced here
    
    go.temporal.io/server/service/frontend/TestHealthCheckerSuite/Test_Check_Declined_Serving Inherited Test_Check_Declined_Serving