Bump tauri-plugin-process in /src-tauri

Bumps tauri-plugin-process from 2.0.0-alpha.4 to 2.0.0-beta.0.

---
updated-dependencies:
- dependency-name: tauri-plugin-process
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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