chore(deps): bump tauri-plugin-shell in /src-tauri

Bumps [tauri-plugin-shell](https://github.com/tauri-apps/plugins-workspace) from `8638740` to `bc834d4`.
- [Release notes](https://github.com/tauri-apps/plugins-workspace/releases)
- [Commits](tauri-apps/plugins-workspace@8638740...bc834d4)

---
updated-dependencies:
- dependency-name: tauri-plugin-shell
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>