cassandra: use cassandra_4

  true`. This is generally safe behavior, but for anyone needing to opt out from

  the check `users.users.${USERNAME}.ignoreShellProgramCheck = true` will do the job.

- Cassandra now defaults to 4.x, updated from 3.11.x.

## New Services {#sec-release-23.11-new-services}

- [MCHPRS](https://github.com/MCHPR/MCHPRS), a multithreaded Minecraft server built for redstone. Available as [services.mchprs](#opt-services.mchprs.enable).

    jre = pkgs.jdk11_headless;

    python = python3;

  };

  cassandra = cassandra_3_11;

  cassandra = cassandra_4;

  cassandra-cpp-driver = callPackage ../development/libraries/cassandra-cpp-driver/default.nix { };