chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/nodejs-16.yml

@@ -14,7 +14,7 @@ jobs:
       cancel-in-progress: true
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:

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

@@ -7,7 +7,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - run: corepack enable
       - uses: actions/setup-node@v4