Cherry pick in [logging: Add startup logging for shard counts (](https://github.com/influxdata/influxdb/commit/3c87f524edcf440319c77ae8bbd4d027cec27634)https://github.com/influxdata/influxdb/pull/25378[)](https://github.com/influxdata/influxdb/commit/3c87f524edcf440319c77ae8bbd4d027cec27634) to main-2.x