release-23.1: kv: don't log on lease extension while draining

[blathers-crl]

Backport 1/1 commits from #119474 on behalf of @nvanbenschoten.

/cc @cockroachdb/release

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Fixes #119451.

This commit updates the logging in Replica.leasePostApplyLocked to not log on expiration-based lease extensions while the new leaseholder's store is draining. We now only log when a draining store receives a new lease.

Release note: None

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Release justification: avoids log spam

[blathers-crl]

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[blathers-crl]

It looks like your PR touches production code but doesn't add or edit any test code. Did you consider adding tests to your PR?

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[cockroach-teamcity]

This change is