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

Author: renovate[bot]

.github/workflows/nodejs-16.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Use Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 16
       - run: npm install

.github/workflows/pkg.pr.new.yml

@@ -10,7 +10,7 @@ jobs:
         uses: actions/checkout@v4
 
       - run: corepack enable
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 20