[BUGFIX] Avoid DBAL\Exception on unknown data type in Install Tool

Using $connection->getSchemaManager()->listTableNames() instead of
->listTables() in Install Tool prevents a DBAL\Exception as the table
details are not requested - which are not used anyway, so this is
faster too.

Releases: master, 8.7
Resolves: #81264
Change-Id: I35db1b6fa743ad4869bf2ba24717320f0f009995
Reviewed-on: https://review.typo3.org/52907


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>