chore: remove skip-checkout from ReleaseKit action in workflow

- Removed the `skip-checkout: 'true'` line from the ReleaseKit action in the GitHub workflow to ensure proper checkout behavior.
- This change aligns with the current workflow requirements and may help in resolving issues related to package publishing.

Author: goosewobbler

.github/workflows/_release.reusable.yml

@@ -232,7 +232,6 @@ jobs:
           project-dir: .
           verbose: 'true'
           summary: 'true'
-          skip-checkout: 'true'
         env:
           GITHUB_TOKEN: ${{ github.token }}
           CARGO_REGISTRY_TOKEN: ${{ secrets.crates_io_token }}