Fork for php 8.1+ and new cassandra features

As  this project does not seem to be maintained anymore, I have forked it and updated it for the new cassandra features (data types, etc).
Feel free to give it a try (currently I still consider it as beta, feedback is welcome):
https://github.com/MichaelRoosz/php-cassandra

All the pull requests from this project have been merged in the fork.