[BUGFIX] Properly set a request object in FormPersistenceManager

Due to the removed fallback to $GLOBALS['TYPO3_REQUEST']
in #102513, it's required to properly set a request
object to a configuration manager instance.

This is now done in FormPersistenceManager, which
previously just set a fake request to the global
variable but did not use the setRequest() method.

Resolves: #102558
Related: #102513
Releases: main
Change-Id: I5347e70feb11b192ad5d7829d48f412f27f79bd3
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/82040


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