[Feature request] StudioRack integration

### Enhancement Summary

It's an open-source plugin manager called StudioRack:
https://github.com/studiorack

The aim of the project is to provide a free open-source way to manage plugin dependencies and their versions. It would involve the following steps:

Publish a Github release containing the plugin source along with metadata plugins.json
Tag your Github repository with studiorack-plugin so it can be discovered
Wait for the studiorack-registry to index your plugin (every 24 hours)
Check the registry feed for your plugin to appear

### Implementation Details / Mockup

add a json file

### Please search the issue tracker for existing feature requests before submitting your own.

- [X] I have searched all existing issues and confirmed that this is not a duplicate.

Start by reviewing StudioRack's plugins.json metadata requirements and the repository's GitHub release and tagging workflow. Determine where the metadata file belongs and verify that the published release and studiorack-plugin tag allow the plugin to appear in the registry feed.

Written by the indexing model from the issue text.