[Tails-l10n] (review)[de] 2.4 release notes

Hi,
the mandatory release notes, ready for being reviewed:

https://gitlab.com/spriver/tails.git
Branch: de_tails_24
HEAD commit: 7d90580 Initial translation
Affected files:
wiki/src/news/version_2.4.de.po
wiki/src/security/Numerous_security_holes_in_2.3.de.po

Cheers!
spriver