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[BOOKIE-LEDGER-RECOVERY] Fix bookie recovery stuck even with enough ack-quorum response

### Motivation
As discussed at https://github.com/apache/pulsar/issues/6505 

Bk-client was not able to recover ledger which has 2 write/ack quorum and one of the bookie went down and recovery was kept failing and bookkeeper client was not able to recover the ledger.

**BK-Client log**

```
20:44:43.721 [BookKeeperClientWorker-OrderedExecutor-1-0] ERROR org.apache.bookkeeper.client.ReadLastConfirmedOp - While readLastConfirmed ledger: 1234567 did not hear success responses from all quorums
20:44:43.721 [bookkeeper-io-12-27] ERROR org.apache.bookkeeper.proto.PerChannelBookieClient - Could not connect to bookie: [id: 0xb8b97441, L:/1.1.1.1:1234]/1.1.1.2:3181, current s
tate CONNECTING : 
io.netty.channel.AbstractChannel$AnnotatedConnectException: finishConnect(..) failed: No route to host: /1.1.1.2:3181
        at io.netty.channel.unix.Errors.throwConnectException(Errors.java:112) ~[netty-all-4.1.32.Final.jar:4.1.32.Final]
        at io.netty.channel.unix.Socket.finishConnect(Socket.java:269) ~[netty-all-4.1.32.Final.jar:4.1.32.Final]
        at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.doFinishConnect(AbstractEpollChannel.java:665) [netty-transport-native-epoll-4.1.31.Final.jar:4.1.31.Final]
        at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.finishConnect(AbstractEpollChannel.java:642) [netty-transport-native-epoll-4.1.31.Final.jar:4.1.31.Final]
        at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.epollOutReady(AbstractEpollChannel.java:522) [netty-transport-native-epoll-4.1.31.Final.jar:4.1.31.Final]
        at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:423) [netty-transport-native-epoll-4.1.31.Final.jar:4.1.31.Final]
        at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:330) [netty-transport-native-epoll-4.1.31.Final.jar:4.1.31.Fina... (continued)

28233 of 39306 relevant lines covered (71.83%)

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Source Files on job 762.1