Fix: Retry logic for NotALeader errors by refreshing routing table #271
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Problem:
When the client encounters NotALeader errors, it may continue using a stale routing table, causing write queries to be routed incorrectly to followers.
Fix:
This PR updates the client to close the pool and refresh the routing table upon NotALeader errors, ensuring it re-acquires a valid leader connection before retrying.
Related Issue:
Fixes #270