Include RELEASES.json in macOS build assets upload

Add RELEASES.json to the release artifacts for macOS builds,
which is needed for auto-update functionality.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.github/workflows/release.yml

@@ -68,7 +68,7 @@ jobs:
       - name: Upload macOS assets
         if: matrix.os == 'macos-latest'
         run: |
-          for file in out/make/zip/darwin/**/*.zip out/make/*.dmg; do
+          for file in out/make/zip/darwin/**/*.zip out/make/zip/darwin/**/*RELEASES.json out/make/*.dmg; do
             gh release upload ${{ needs.draft-release.outputs.tag-name }} "$file" --clobber
           done
         env: