[TASK] Provide more information to itemsProcFunc calls

Adding the following information to itemsProcFunc helps extension
authors:
- effectivePid: correct page id
- site: current site

Resolves: #99346
Releases: main, 12.4
Change-Id: Ifc54a06c66f3dbf61a2e95f706bb54e74db4b28e
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/82240


Tested-by: core-ci <typo3@b13.com>
Tested-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>