[TASK] Raise styleguide

Brings a series of rather minor fixes.

> composer u typo3/cms-styleguide

Resolves: #99525
Releases: main
Change-Id: I8832baccaf98d5b1c4e97a1d922b5a2b712e6a05
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77365


Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Oliver Bartsch <bo@cedev.de>