Push to correct branch spec

Author: MarcusGrass

.github/publish-prebuilt.sh

@@ -11,5 +11,5 @@ cp "./target/$1/lto/$2" ../$3
 cd ../../
 git add "lua/$3"
 git commit -m "publish latest"
-git push origin "tmp-prebuilt-$1":"$1-latest"
+git push origin "$1-latest"