Update Node.js version in skill-eval workflow

Author: kdinev

.github/workflows/skill-eval.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '22'
 
       - name: Install eval dependencies
         working-directory: evals