AbstractDatabaseTool::getBackupService() relies on deprecated method

[mbabker]

The AbstractDatabaseTool::getBackupService() method tries to build a backup service by identifying the database platform when the ORM is in use. However, Doctrine\DBAL\Platforms\AbstractPlatform::getName() is deprecated in favor of identifying platforms based on their class names and instanceof checks.

This one isn't a straightforward replacement because the container parameter name that this code is trying to reference is built around the simple identifiers the getName() method was returning, so a new strategy for resolving the database backup service for the ORM is going to be needed (for simplicity sake, you can probably map instanceof checks to the names that the deprecated getName() method is using).

[alexislefebvre]

Please review this proposal:

• feat: don't call deprecated method getName() on doctrine platform #255