fix: add upload artifact step

Author: Naramsim

.github/workflows/deploy.yml

@@ -10,6 +10,9 @@ jobs:
       pages: write
       id-token: write
     runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
     steps:
       - uses: actions/setup-python@v5
         with:
@@ -21,5 +24,9 @@ jobs:
           cd 2021
           make install-python-requirements
           make generate-site
+      - name: Upload static files as artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: site/
       - name: Deploy
         uses: actions/deploy-pages@v4