[TASK] Doctrine: Migrate LanguageIsoCodeUpdate

Resolves: #77461
Releases: master
Change-Id: Icb53997368d031e027f014a5ce7866963211f613
Reviewed-on: https://review.typo3.org/49438


Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Bamboo TYPO3com <info@typo3.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>