[server] Support table-level minimum in-sync replicas

[litiliu]

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• I searched in the issues and found nothing similar.

Motivation

Add a table-level minimum ISR option that overrides log.replica.min-in-sync-replicas-number, because replication factor is already configurable per table and different tables may require different durability and availability policies.

Solution

No response

Anything else?

No response

Willingness to contribute

• I'm willing to submit a PR!