[TASK] Better checks in Build/Script/checkFilePermissions.sh

git stores files either 0664 or 0775. Script
checkFilePermissions.sh is improved to deal with that.

Resolves: #95203
Releases: master
Change-Id: I49ede03ac7e1180621c497081e463d8c617250b3
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/71046


Tested-by: core-ci <typo3@b13.com>
Tested-by: Jonas Eberle <flightvision@googlemail.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Jonas Eberle <flightvision@googlemail.com>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>