[TASK] Improve some type annotations in DB-upgrade-related classes

This is a pre-patch to a bugfix.

Resolves: #100491
Related: #100428
Releases: main
Change-Id: I981f4f465ebacacdceaed4bfed151ce0d3ae3e3a
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78497


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