[TASK] Have composer/composer:^2.2 as dev dependency

The index.php entry point handling and package
handling core scripts are composer plugins. As
such, they rely on composer. To resolve dependencies
in IDE's and phpstan, composer should be a core
monorepo dev dependency. This resolves about 50
issues from phpstan baseline.

> composer req --dev composer/composer:^2.2
> Build/Scripts/runTests.sh -s phpstanGenerateBaseline

Change-Id: Iaaa4d327b7e82ca1e377d66cb1846a1699a20254
Resolves: #96676
Releases: main, 11.5
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/73201


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: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>