Intent of TestUpdateGlobalNamespace_NoAttrSet

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
    
    TestNamespaceHandlerCommonSuite/ 2 tests
    
    go.temporal.io/server/service/frontend/TestNamespaceHandlerCommonSuite/TestUpdateGlobalNamespace_NoAttrSet Introduced here
    
    go.temporal.io/server/service/frontend/TestNamespaceHandlerCommonSuite/TestUpdateNamespace_PromoteLocalNamespace Inherited TestUpdateNamespace_PromoteLocalNamespace