Update js CI

Author: Halbaroth

.github/workflows/build_js.yml

@@ -55,7 +55,7 @@ jobs:
 
       # compile Alt-Ergo with Js_of_ocaml
       - name: Make alt-ergo.js
-        run: opam exec -- make js-node
+        run: opam exec -- make js
 
       # Use Node Js actions
       - uses: actions/setup-node@v4