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

New package: librnnoise-ladspa-0.91
https://github.com/void-linux/void-packages/pull/30528

Description:
<!-- Mark items with [x] where applicable -->

Noise suppression plugin from https://github.com/werman/noise-suppression-for-voice.  I don't use this library directly but instead use [Cadmus](https://github.com/josh-richardson/cadmus), which depends on this library.

#### General
- [x] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [x] I generally don't use the affected packages but briefly tested this PR

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