Drop support for unsupported DB versions and add tests for new versions

[drebrez]

MicrosoftSQL

• https://learn.microsoft.com/en-us/lifecycle/products/?terms=sql%20server

MySQL

• https://www.mysql.com/support/supportedplatforms/database.html
• https://endoflife.date/mysql

MariaDB

• https://mariadb.com/kb/en/mariadb-server-release-dates/

PostgreSQL

• https://www.postgresql.org/support/versioning/