Update target Cassandra versions for integration tests, support new 4.0.x and 4.1.x

Currently, apache/cassandra-java-driver runs against 4.0.0 but not newer 4.0.x or 4.1.x releases: https://github.com/apache/cassandra-java-driver/blob/4.x/core/src/main/java/com/datastax/oss/driver/api/core/Version.java#L54C1-L55C1

4.1 introduces changes to config as well, so there are failures to start CCM clusters if we do a naive version bump, like: "org.apache.cassandra.exceptions.ConfigurationException: Config contains both old and new keys for the same configuration parameters, migrate old -> new: [enable_user_defined_functions -> user_defined_functions_enabled]"

I have a patch ready for this, working on preparing it.