Allow mysql & postgres for acceptance tests in
addition to default mariadb:

* Build/Script/runTests.sh -s acceptance -d mysql
* Build/Script/runTests.sh -s acceptance -d postgres

Change-Id: If65f1d8d8b4443107d655948ce87af4390d9681f
Resolves: #93405
Releases: master, 10.4, 9.5
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/67623


Tested-by: Simon Gilli <typo3@gilbertsoft.org>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Simon Gilli <typo3@gilbertsoft.org>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>