Log Message:
stellarium: updated to 0.21.3

0.21.3 [2021-12-25]
The major changes of this version:
- Better handling of minor bodies with outdated orbital elements
- "Goto next day at same altitude" functionality for selected objects
- Mark a few special points on the planets
- Three refined Arab skycultures
- Updated Mul-Apin skyculture with new artwork
- Improved OnlineQueries and Satellites plugin
- Fixed a problem with LX200 telescopes
- Many fixes in core and plugins