deps: update actions/setup-node action to v6

Author: renovate-bot

.github/workflows/renovate_config_check.yaml

@@ -14,7 +14,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Set up Node.js
-      uses: actions/setup-node@v4
+      uses: actions/setup-node@v6
       with:
         node-version: '22'