The MariaDB JSON functions are no longer processed

[konmedia-devops]

The MariaDB JSON functions are no longer processed as of doctrine/dbal:4.0 because the platform abstraction has changed there.

\Scienta\DoctrineJsonFunctions\Query\AST\Functions\Mariadb\MariadbJsonFunctionNode::validatePlatform

The class mentioned checks for the MySQLPlatform. However, MariaDb now only belongs to it in an abstract way. It would have to check for AbstractMySQLPlatform.