editors/libreoffice: update to 26.2.4 release (+)

LibreOffice suite release of 26.2.4 is available for FreeBSD users.

Release notes: https://wiki.documentfoundation.org/ReleaseNotes/26.2
Changelog: https://wiki.documentfoundation.org/Releases/26.2.4/RC1 \

https://wiki.documentfoundation.org/Releases/26.2.4/RC2