[TASK] Add 10.4.x Changelog section

Resolves: #91166
Releases: master
Change-Id: Ief1dfff09aba275a11306693cf39ebc71992f5f9
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64301


Tested-by: Björn Jacob <bjoern.jacob@tritum.de>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Josef Glatz <josefglatz@gmail.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Björn Jacob <bjoern.jacob@tritum.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Josef Glatz <josefglatz@gmail.com>
Reviewed-by: Benni Mack <benni@typo3.org>