Add entries to the changelog

* Highlights
- Fix a regression in the node activation counters that would
break audio when using KODI.
- Fix a regression in ardour export because of mishandling of
sync groups.
- Fix a regression in KDE screen preview because of the new
async scheduling.
- Fix a regression in context.exec argument parsing that would
break some existing scripts.
- More small bug fixes and improvements.
* PipeWire
- Fix a regression in the node activation counters that would
break audio when using KODI. (#4087)
- Fix a regression in ardour export because of mishandling of
sync groups. (#4083)
- Fix a regression in KDE screen preview because of the new
async scheduling. Disable async for driver nodes. (#4092)
- Slightly improve node shutdown to cause less xruns.
- Fix a regression in context.exec argument parsing that would
break some existing scripts.
- Support custom thread create functions.
* Modules
- Improve snapcast address parsing. (#4093)
* SPA
- Fix multiple %f parsing in ACP for the new plug+a52 profiles.
- Improve v4l2 param generation. Improve recovery when
framesize or rates are unknown, support vivid. (#4063)
* JACK
- Use the custom thread create function to correctly let
module-rt kit manage threads so that we don't end up with