[BUGFIX] Check in TcaMigration if the type is set

The type field is essential for TCA and must be checked if available.

Resolves: #79059
Releases: master
Change-Id: I6b5a94db0372e25a18ecb21a3966cece8cc9f207
Reviewed-on: https://review.typo3.org/51017


Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Jan Helke <typo3@helke.de>
Tested-by: Jan Helke <typo3@helke.de>