There's a closed pull request on the void-packages repository

New package: weka-3.9.6
https://github.com/void-linux/void-packages/pull/37650

Description:
Machine learning algorithms for data mining tasks.
https://www.cs.waikato.ac.nz/ml/weka/

#### Testing the changes
- I tested the changes in this PR: **YES**

#### New package
- This new package conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements): **YES**

#### Local build testing
- I built this PR locally for my native architecture, (x86_64-musl, x86_64)

![Screenshot_20220623_162448](https://user-images.githubusercontent.com/45872139/175265667-03193793-8157-4a74-8743-d49e3070cedd.png)