Apache Flink

~Hey all, maybe I'm missing something, but does the RabbitMQ connector have SSL/TLS support?~

~I'm building apps for Kinesis Data Analytics, so I'm currently on v1.13.2, with the option to run v1.15.x, but I don't see an SSL/TLS option exposed on  `RMQConnectionConfig.Builder`  even in the v1.18 docs.  I also don't see the `getConnectionFactory` method looking at the protocol of the URI (if supplied) to enable SSL if the protocol is `amqps` vs `amqp` .~

After digging a little deeper in RMQSink, I found that TLS is not enabled by default and that I needed to provide a subclass overriding the `setupConnection()` method.