.github/workflows/pages.yml: attempt to update site

If there are changes to the site after running the schema parsing
script we should commit the changes.

.github/workflows/pages.yml

@@ -20,6 +20,16 @@ jobs:
       - name: Generate Hugo content
         run: |
           poetry run ./util/generate-hugo-content.py -i ./data/schema-fields.csv --clean -d
+      - name: Setup Hugo
+        uses: peaceiris/actions-hugo@v2
+	  - name: Build Hugo site
+		run: hugo
+		working-directory: site
+      - name: Commit Hugo content
+        uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          commit_message: Automated commit with site updates
+		  file_pattern: site/*
   pages:
     runs-on: ubuntu-latest
     if: ${{ github.ref_name == 'main' }}