feat: Add the original assets file to the release

It's easier to download it from the github release page than to navigate
to the code, click on the file, and click on download. Also, this makes
sure that the assets file is compatible with the current release.

.github/workflows/release.yml

@@ -41,6 +41,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           files: |
             bin/*
+            game-assets-original.json
           body_path: ".github/RELEASE-TEMPLATE.md"
           tag_name: ${{ env.VERSION }}
           draft: false