ci: add gh pages deploy workflow

.github/workflows/deploy-docusaurus.yml

@@ -0,0 +1,55 @@
+name: Deploy Docs to Pages
+
+on:
+    push:
+        branches:
+            - v4
+    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:
+    # Single deploy job since we're just deploying
+    deploy:
+        environment:
+            name: github-pages
+            url: ${{ steps.deployment.outputs.page_url }}
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v4
+
+            - name: Setup Node.js
+              uses: actions/setup-node@v3
+              with:
+                  node-version-file: .nvmrc
+
+            - name: Install dependencies
+              working-directory: ./website
+              run: npm ci
+
+            - name: Build documentation
+              working-directory: ./website
+              run: npm run build
+
+            - name: Setup Pages
+              uses: actions/configure-pages@v5
+
+            - name: Upload artifact
+              uses: actions/upload-pages-artifact@v3
+              with:
+                  path: './website/build'
+
+            - name: Deploy to GitHub Pages
+              id: deployment
+              uses: actions/deploy-pages@v4