Upgrade GitHub Actions to checkout@v5 and deploy-pages@v4

Author: bedroesb

.github/workflows/jekyll.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ github.event.inputs.branch }}