Intent of new_format:_both_current_and_ramping_deleted_->_both_nil

All 3 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 3 tests
- server/ 3 tests
  - common/ 3 tests
    
    worker_versioning/ 3 tests
    
    TestCalculateTaskQueueVersioningInfo/ 3 tests
    
    go.temporal.io/server/common/worker_versioning/TestCalculateTaskQueueVersioningInfo/new_format:_both_current_and_ramping_deleted_->_both_nil Introduced here
    
    go.temporal.io/server/common/worker_versioning/TestCalculateTaskQueueVersioningInfo/new_format:_current_version_marked_as_deleted_should_be_ignored Inherited new_format:_current_version_marked_as_deleted_should_be_ignored
    
    go.temporal.io/server/common/worker_versioning/TestCalculateTaskQueueVersioningInfo/new_format:_ramping_version_marked_as_deleted_should_be_ignored Inherited new_format:_ramping_version_marked_as_deleted_should_be_ignored