Is your feature request related to a problem? Please describe.

Currently, SQL Stats periodically flushes in-memory stats into system table, or when the in-memory buffer fills up.
Additionally, we would like to flush the SQL Stats into the system table when a node is shutting down. This is important is multi-tenant environment, where a SQL Pod is shutdown after a short period of inactivity.

Describe the solution you'd like
implementing #72045 and #74412

Epic: CC-5060