release-23.1: server/structlogging: log local node HotRanges

[xinhaoz]

Backport 1/1 commits from #118093.

/cc @cockroachdb/release

Release justification: bug fix

---

Previously the RPC used for per-node hot ranges logging was requesting the top 5 hot ranges across the cluster. We should instead log the node's local hot ranges.

Epic: none
Fixes: #117430

Release note (ops change): Per-node hot ranges logging now logs local top 5 hot ranges instead of top 5 cluster-wide hot ranges.

[blathers-crl]

Thanks for opening a backport.

Please check the backport criteria before merging:

• Backports should only be created for serious
  issues or test-only changes.
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  here).
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• There is a high priority need for the functionality that cannot wait until the next release and is difficult to address in another way.
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Also, please add a brief release justification to the body of your PR to justify this
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[cockroach-teamcity]

This change is