KDE: Update KDE Gear to 21.12.3

Thursday, 3 March 2022

Over 120 individual programs plus dozens of programmer libraries and
feature plugins are released simultaneously as part of KDE Gear.

Today they all get new bugfix source releases with updated translations,
including:

   * kcron: Improve temporary file handling
   * kio-extras: SFTP can use random access
   * kontact: Fix Manager Crash when clicking New

Distro and app store packagers should update their application packages.

Changelog:
	https://kde.org/announcements/changelogs/gear/21.12.3/
Release Notes:
	https://community.kde.org/KDE_Gear/21.12_Release_notes