Revert to uploading pages to numpy.github.com repo (#665)

I don't know how to serve the `/doc` subfolder with the GHA workflow yet.

.github/workflows/gh-pages.yml

@@ -9,25 +9,18 @@ on:
   push:
     branches:
       - main
-      - deploy
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 
-# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
-permissions:
-  contents: read
-  pages: write
-  id-token: write
-
 # Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
 # However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
 concurrency:
   group: pages
   cancel-in-progress: false
 
 jobs:
-  build:
+  build-and-deploy:
     runs-on: ubuntu-latest
     steps:
       - name: Install Hugo CLI
@@ -52,18 +45,10 @@ jobs:
             --gc \
             --minify \
             --baseURL "${{ steps.pages.outputs.base_url }}/"
-      - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
+      - name: Deploy pages
+        uses: JamesIves/github-pages-deploy-action@releases/v4
         with:
-          path: ./public
-
-  deploy:
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-    runs-on: ubuntu-latest
-    needs: build
-    steps:
-      - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@v2
+          folder: ./public
+          repository-name: numpy/numpy.github.com
+          branch: main
+          token: ${{ secrets.PERSONAL_TOKEN }}