Updated to node 20

.github/workflows/merge-sample-json.yml

@@ -17,18 +17,24 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout main branch
-        uses: actions/checkout@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
         with:
+          node-version: '20'
           ref: main
           path: main
       - name: Checkout gh-pages branch
-        uses: actions/checkout@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
         with:
+          node-version: '20'
           ref: gh-pages
           path: gh-pages
       - name: Checkout Docs branch
-        uses: actions/checkout@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
         with:
+          node-version: '20'
           ref: Docs
           path: Docs
       - name: Download Extension samples