[BUGFIX] Deprecation free ArrayObject in extbase Controller/Arguments

ext:extbase Controller/Arguments extends ArrayObject
which implements several interfaces. Since PHP 8.1
added concrete return types this triggers deprecation
messages, and in cases of inheritance fatal.

This patch adds #[\ReturnTypeWillChange] to methods
as we cannot add concrete return types without beeing
breaking. Also add corresponding @todos to add them
as breaking patch in v12.

Resolves: #95748
Releases: master
Change-Id: I4f9e2d9bc57df06146e17b2d20773db327237851
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/71951


Tested-by: core-ci <typo3@b13.com>
Tested-by: Simon Gilli <typo3@gilbertsoft.org>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Simon Gilli <typo3@gilbertsoft.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>