ci: add GitHub Actions workflow to deploy pdoc docs to GitHub Pages

.github/workflows/docs.yml

@@ -0,0 +1,20 @@
+name: Docs
+
+on:
+  push:
+    branches: [master]
+
+permissions:
+  contents: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: astral-sh/setup-uv@v5
+      - run: uvx pdoc src/rbx_upload -o docs/
+      - uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./docs