Log Message:
stellarium: updated to 23.3

23.3 [2023-09-25]
The Stellarium Team has released version 23.3.

The major changes of this version:
- New plugin: Missing Stars
- Allow semitransparent landscapes
- Added discovery circumstances for Solar system bodies
- Improve orbit drawing for minor bodies
- Show named impact features as ellipses
- Major changes in Navigational Stars plugin
- Observing List fixes
- Unambiguous comet names

Behind the scenes, many more minor issues were fixed.

TELESCOPE USERS

We have identified and fixed some bugs in the TelescopeControl plugin on
the Qt6-based releases.