Merge pull request #13 from Go2Engle/renovate/actions-checkout-4.x

Update actions/checkout action to v4

Author: Go2Engle

.github/workflows/pages-deploy.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0  # for posts's lastmod