[BUGFIX] Migrate Site TCA Configuration

Until now, the TCA for Site Configuration was never migrated by the
TcaMigrator. With the massive amount of TCA deprecations, an error
popped up eventually. The gathered TCA overrides are now migrated and
will log deprecation level log entries, just like the standard TCA
migration.

Resolves: #100359
Releases: main
Change-Id: I94da983b93e79b1f15c38b5d41763c7ed822e47a
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78333


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