fix: use supported actionlint workflow action

Switch the CI workflow to the maintained actionlint wrapper so workflow linting resolves on GitHub and the new lint gate can actually run.

Made-with: Cursor

Author: haasonsaas

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Lint GitHub Actions
-        uses: rhysd/actionlint@v1
+        uses: raven-actions/actionlint@v2
       - uses: actions/setup-node@v4
         with:
           node-version: '20'