There is a new pull request by flupe against master on the void-packages repository

https://github.com/flupe/void-packages waybar
https://github.com/void-linux/void-packages/pull/34987

Waybar: update to 0.9.9.
#### Testing the changes
- I tested the changes in this PR: **briefly**

#### Other
Removed the *river* patch that got merged upstream (Alexays/Waybar#1215).

A patch file from https://github.com/void-linux/void-packages/pull/34987.patch is attached