Update actions/configure-pages action to v6

Author: renovate[bot]

.github/workflows/jekyll-gh-pages.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Setup Pages
-        uses: actions/configure-pages@v2
+        uses: actions/configure-pages@v6
       - name: Build with Jekyll
         uses: actions/jekyll-build-pages@v1
         with: