yaml configure-page修正

Author: kiyoshi-honda

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

@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
       - name: Setup Pages
         uses: actions/configure-pages@v3
       - name: Build with Jekyll