clickhouse-keeper: Add Force Recovery Support for Cluster Reconfiguration without Quorum

Why it matters

This feature addresses the problem of cluster management being stalled when quorum is lost. It allows administrators to forcibly recover and reconfigure the cluster state even if the required quorum is not met, improving disaster recovery and operational flexibility.

How to use it

To use force recovery, enable the corresponding option in clickhouse-keeper configuration or command line to bypass quorum checks during cluster reconfiguration. This allows you to restore cluster functionality and apply configuration changes when quorum is unavailable.