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

Author: renovate[bot]

.github/workflows/check-rewrite.yml

@@ -22,7 +22,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: '22.x'
 

.github/workflows/deploy-rewrite.yml

@@ -13,7 +13,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: '22.x'