x11/plasma5-plasma: Update KDE Plasma Desktop to 5.22.1

Tuesday, 15 June 2021. Today KDE releases a bugfix update to KDE Plasma
5, versioned 5.22.1.

Plasma 5.22 was released in June 2021 with many feature refinements and
new modules to complete the desktop experience.

This release adds a week's worth of new translations and fixes from
KDE's contributors. The bugfixes are typically small but important and
include:

• KWin: Platforms/drm: support NVidia as secondary GPU with CPU copy.
• Weather applet: Point bbcukmet to new location API.
• Wallpapers: Add milky way.

View full changelog at
https://kde.org/announcements/changelogs/plasma/5/5.22.0-5.22.1