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

Author: renovate[bot]

.github/workflows/validation.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Checkout Code
         uses: actions/checkout@v4
       - name: Use Node.js ${{ env.node-version }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ env.node-version }}
           cache: "npm"
@@ -43,7 +43,7 @@ jobs:
       - name: Checkout Code
         uses: actions/checkout@v4
       - name: Use Node.js ${{ env.node-version }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ env.node-version }}
           cache: "npm"
@@ -55,7 +55,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: ${{ env.node-version }}
           cache: "npm"