try manually adding new worflow file

.github/workflows/frontend.yml

@@ -0,0 +1,22 @@
+name: <%= params.extensionName %> JS
+
+on: [workflow_dispatch, push, pull_request]
+
+# The reusable workflow definitions will be moved to the `flarum/framework` repo soon.
+# This will break your current script.
+# When this happens, run `flarum-cli audit infra --fix` to update your infrastructure.
+
+jobs:
+  run:
+    uses: flarum/.github/.github/workflows/REUSABLE_frontend.yml@as/support-npm-yarn
+    with:
+      enable_bundlewatch: true
+      enable_prettier: true
+      enable_typescript: true
+
+      frontend_directory: js
+      backend_directory: src
+      package_manager: yarn
+      main_git_branch: main
+    secrets:
+      bundlewatch_github_token: ${{ secrets.BUNDLEWATCH_GITHUB_TOKEN }}