Fix release upload workflow

Author: anuraaga

.github/workflows/release-testing.yaml

@@ -272,4 +272,4 @@ jobs:
             --generate-notes \
             --prerelease
           echo "Uploading artifacts for tag ${{ env.VERSION }}"
-          gh release upload ${{ env.VERSION }} dist/* --clobber
+          gh release upload ${{ env.VERSION }} dist/*.tgz dist/*.zip --clobber