[TASK] Apply CGL compatibility (PSR-1 and PSR-2)

Regular code cleanup about CGL standards.

Executed via
php-cs-fixer fix --config-file Build/.php_cs typo3

Resolves: #72490
Releases: master
Change-Id: I8bfa99339bd337a36a6d475553efa18033047368
Reviewed-on: https://review.typo3.org/45524


Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>