[TASK] Raise typo3/cms-styleguide:~11.5.3

Aligns styleguide to recent JS CSP header changes.

composer req --dev typo3/cms-styleguide:~11.5.3

Change-Id: Ia6f8bfe4346264af0cbe5588110633d6be419112
Resolves: #96168
Releases: 11.5
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/72407


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