Handle GetShardHome after rebalance #3271
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Port of akka/akka#24209
GetShardHomerequest was received while shard was rebalancing, request was ignored. It was not a problem, as retry was send later. Now, requests senders are collected, and once rebalance is done, they are being replied reactivelly (potentially before request retry).DDataShardCoordinatorin the middle of the update, andGetShardHomeis incoming for shard of known localization, we can reply right away instead of awaiting for update phase to complete. This is change done in one of the previous PRs on Akka JVM side.