chore(deps): update actions/setup-node action to v6

Author: renovate[bot]

.github/workflows/auto-merge.yml

@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Set up Node.js
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: '22'
 

.github/workflows/publish.yml

@@ -50,7 +50,7 @@ jobs:
             exit 1
           fi
       - name: Setup Node
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: "20"
           cache: ${{ steps.detect-package-manager.outputs.manager }}