AdvancedShardAwarenessIT.should_initialize_all_channels can fail

[dkropachev]

Test fails with:

junit.framework.AssertionFailedError: Expected to find pattern exactly 1 times but found it 0 times. Pattern: [.*\.2:19042.*Reconnection attempt complete, 6/6 channels.*]

Due to the socket collision:

io.netty.channel.AbstractChannel$AnnotatedSocketException: Address already in use: /127.0.3.2:19042
	Suppressed: com.datastax.oss.driver.api.core.connection.ConnectionInitException: [s9|connecting...] Protocol initialization request, step 1 (OPTIONS): failed to send request (java.nio.channels.NotYetConnectedException)
		at com.datastax.oss.driver.internal.core.channel.ProtocolInitHandler$InitRequest.fail(ProtocolInitHandler.java:391)
		at com.datastax.oss.driver.internal.core.channel.ChannelHandlerRequest.writeListener(ChannelHandlerRequest.java:89)
		at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:590)
		at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:557)
		at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:492)
		at io.netty.util.concurrent.DefaultPromise.addListener(DefaultPromise.java:185)
		at io.netty.channel.DefaultChannelPromise.addListener(DefaultChannelPromise.java:95)
		at io.netty.channel.DefaultChannelPromise.addListener(DefaultChannelPromise.java:30)
		at com.datastax.oss.driver.internal.core.channel.ChannelHandlerRequest.send(ChannelHandlerRequest.java:78)
		at com.datastax.oss.driver.internal.core.channel.ProtocolInitHandler$InitRequest.send(ProtocolInitHandler.java:218)
		at com.datastax.oss.driver.internal.core.channel.ProtocolInitHandler.onRealConnect(ProtocolInitHandler.java:142)
		at com.datastax.oss.driver.internal.core.channel.ConnectInitHandler.lambda$connect$0(ConnectInitHandler.java:59)