Add "cassandra.ring_delay_ms" to "cassandra-basics" test for 4.0+
This is a new feature in 4.0 that delays the startup for 30 seconds (by default; https://github.com/apache/cassandra/blob/5e8f7f591dfec5a61d8eb2e9e977ec29f3a2bbe4/src/java/org/apache/cassandra/service/StorageService.java#L150-L162).