fix(ci): 🐛 filter out duplicate builder-debug.yml in upload-manifests job (#36)

The builder-debug.yml file is generated by electron-builder for each platform
(mac/win/linux), causing duplicate files when merging artifacts. This results
in a 404 error when action-gh-release tries to update an asset that was
already uploaded.

This fix removes builder-debug.yml before uploading, keeping only the
latest-*.yml update manifests.

Author: jorben

.github/workflows/release.yml

@@ -124,6 +124,13 @@ jobs:
           echo "Downloaded manifests:"
           find manifests -type f -name "*.yml" | sort
 
+      - name: Filter out builder-debug.yml and keep only latest manifests
+        run: |
+          # Remove builder-debug.yml from manifests directory (exists in all platform artifacts)
+          find manifests -name "builder-debug.yml" -delete
+          echo "Remaining manifests:"
+          find manifests -type f -name "*.yml" | sort
+
       - name: Upload update manifests to release
         uses: softprops/action-gh-release@v2
         with: