Publish latest docs to GH pages

.github/workflows/docs-deploy.yml

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+# This is for testing and getting at least basic docs builds out, but could
+# be integrated into the central workflow later.
+
+# The released docs are not versioned currently, only the latest ones are deployed.
+# Versioning support would require either (better):
+#   * Rebuilding docs for all versions when a new release is made
+#   * Version selector support in `furo`: https://github.com/pradyunsg/furo/pull/500
+# or (more basic):
+#   * using the `gh-pages` branch and peaceiris/actions-gh-pages
+#     to be able to deploy to subdiectories. The implementation via
+#     actions/deploy-pages always replaces the directory root.
+
+name: Publish Latest Documentation
+
+on:
+  push:
+    branches:
+      - 'main'
+
+jobs:
+  Docs:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python 3.10 For Nox
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+
+      - name: Install Nox
+        run: |
+          python -m pip install --upgrade pip
+          pip install nox
+
+      - name: Install Doc Requirements
+        run: |
+          nox --force-color -e docs --install-only
+
+      - name: Build Docs
+        env:
+          SKIP_REQUIREMENTS_INSTALL: YES
+        run: |
+          nox --force-color -e docs
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@3
+        with:
+          name: html-docs
+          path: docs/_build/html
+
+  Deploy-Docs-GH-Pages:
+    name: Publish Docs to GitHub Pages
+    needs: Docs
+
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    permissions:
+      pages: write
+      id-token: write
+
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4
+        with:
+          artifact_name: html-docs