Fix versions of Github Actions packages.

Author: msporny

.github/workflows/gh-pages.yml

@@ -36,9 +36,9 @@ jobs:
           ./node_modules/.bin/yml2vocab -v vocab/vocabulary.yml -t vocab/template.html
           rm -rf node_modules
       - name: Setup Github Pages
-        uses: actions/configure-pages@v4
+        uses: actions/configure-pages@v5
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v4
+        uses: actions/upload-pages-artifact@v3
         with:
           # Upload entire repository
           path: '.'