Extent of nil_blob

All 702 source ranges in this concept · page 15 of 15.

Source range	Introduced
`go.temporal.io/server/common/dynamicconfig/setting_gen.go:606-608`	Inherited setting_gen.go ×51
`go.temporal.io/server/common/persistence/history_task_queue_manager.go:248-251`	Inherited history_task_queue_manager.go ×2