[BUGFIX] Avoid deleted workspace relations in RootlineUtility

RootlineUtility uses RelationHandler to resolve relations
attached to pages. The tests from #103598 show that relations
which are set to deleted ("delete placeholder", t3ver_state=2)
are not considered and still part of the result set. The
patch adds a missing call to prevent these.

Resolves: #103599
Related: #103598
Releases: main, 12.4
Change-Id: Ie580e4d9b64c477d8c9d6d4092114c18f43a2a70
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/83739


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