[FEATURE] Add support for MySQL 9.4.0, 8.4.6, and 8.0.43

MySQL versions 9.4.0, 8.4.6, and 8.0.43 were released yesterday. ```mysql-memory-server``` should add support for those versions.

[v9.4.0 release notes](https://dev.mysql.com/doc/relnotes/mysql/9.4/en/news-9-4-0.html)
[v8.4.6 release notes](https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-6.html)
[v8.0.43 release notes](https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-43.html)