fix(workflows): add missing deploy step for GitHub Pages

.github/workflows/build-docs.yml

@@ -32,4 +32,30 @@ jobs:
           name: docs
           path: |
             artifacts/${{ env.ARTIFACT }}
-          retention-days: 7
+          retention-days: 7
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    needs: [build, test]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: docs
+
+      - name: Unzip artifact
+        run: unzip -O UTF-8 -qq '${{ env.ARTIFACT }}' -d dir
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+
+      - name: Package and upload Pages artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: dir
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4