update deploy.yml checkout action to v5 - node24-based.

Author: nbogie

.github/workflows/deploy.yml

@@ -22,7 +22,7 @@ jobs:
         with:
           node-version: 22.22.x
       - name: Checkout your repository using git
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Install dependencies
         run: npm ci
       - name: Build website