ci: add github pages

.github/workflows/publish-docs.yaml

@@ -0,0 +1,43 @@
+name: publish-docs
+
+on:
+  push:
+    branches:
+      - ci/publish-pypi
+
+permissions:
+  contents: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      # check-out repo and set-up python
+      - name: Check out repository
+        uses: actions/checkout@v4
+      - name: Configure Git Credentials
+        run: |
+          git config user.name github-actions[bot]
+          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
+      - name: Set up python
+        id: setup-python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.9"
+
+      # install & configure poetry
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+          installer-parallel: true
+
+      # install dependencies if cache does not exist
+      - name: Install dependencies
+        if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
+        run: poetry install --no-interaction --only docs
+
+      # deploy github pages
+      - name: Deploy GitHub Pages
+        run: mkdocs gh-deploy --force