CI: use different pages deploy action.

Author: whitequark

.github/workflows/main.yaml

@@ -30,16 +30,14 @@ jobs:
     runs-on: ubuntu-latest
     needs: build
     steps:
-      - name: Check out source code
-        uses: actions/checkout@v4
-        with:
-          ref: pages
       - name: Download artifact
         uses: actions/download-artifact@v4
         with:
           name: pages
           path: .
-      - name: Commit changes
-        uses: stefanzweifel/git-auto-commit-action@v6
+      - name: Deploy artifact
+        uses: JamesIves/github-pages-deploy-action@releases/v4
         with:
-          commit_message: "Deploy website."
+          folder: .
+          branch: pages
+          single-commit: true