Use Jedis' clientSetname when establishing Redis connections

This can come in handy when tracing Redis clients (by running `CLIENT LIST` command) and distinguish the connections established by Debezium server.

As we now can have 3 open connections (for the sink itself, the offsets and DB history), setting a name for each one of them (debezium:redis:sink, debezium:offsets, debezium:db-history) can be useful for this purpose.

See:

https://redis.io/commands/client-setname/

zalmane We will provide a PR.