* Modify `ControlBusTests.testControlHeaderChannelReaper()` do not rely on the `timeout`.
Make artificial expiration for the entry in the `registry` to allow `reaper` to remove it according the test logic.
* Fix race condition around `gateway.setRemoteTimeout(5000);` in the `TcpOutboundGatewayTests`.
The problem was that the gateway is called concurrently and `setRemoteTimeout` might be changed before the `handleMessage()` even for the first attempt.