Add a workaround to make sure Redis connection is reconnected in ConnectionRestored event

I found an external issue that after Redis restart, sometimes in ConnectionRestored event the Redis connection is not reconnected yet.

This workaround basically make sure the latest value can be restored for Redis Key.
This workaround basically make sure the Rdis connection is reconnected before Open the stream, so it can reduce the chance of the issue #3093 happening which when Send() method runs into an error, the stream will never be opened again until Redis is restarted.

#3095
ConnectionRestored is raised by StackExchange.Redis, seems it is the only event in StackExchange.Redis related to the connection reconnect.