[BUGFIX] Emit updateSignals in ModuleTemplate

Resolves: #70845
Releases: master
Change-Id: I6dbd0f9e04023d688c9bb793d7e3fd108ed8e35a
Reviewed-on: https://review.typo3.org/44161


Reviewed-by: Frank Nägler <frank.naegler@typo3.org>
Tested-by: Frank Nägler <frank.naegler@typo3.org>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>