[x] I have read the note above about PRs contributing or fixing extensions
[x] I have tried reaching out to the extension maintainers about publishing this extension to Open VSX (if not, please create an issue in the extension's repo using this template).
[x] This extension has an OSI-approved OSS license (we don't accept proprietary extensions in this repository)
Description
This PR adds
swellaby.rust-packfor publishing.