KDE: Update KDE Gear to 23.08.5

Thursday, 15 February 2024

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:

 * knavalbattle: Fix test for placing a ship vertically
 * konsole: Show wallpaper on non-translucent top-levels
 * neochat: Fix saving images