build: add preview action

For more context go to action documentation https://github.com/marketplace/actions/deploy-pr-preview

.github/workflows/preview.yml

@@ -0,0 +1,32 @@
+name: Deploy PR previews
+
+on:
+    pull_request:
+        types:
+            - opened
+            - reopened
+            - synchronize
+            - closed
+
+concurrency: 
+    group: preview-${{ github.ref }}
+    cancel-in-progress: true
+
+jobs:
+    deploy-preview:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v4
+            - uses: actions/setup-python@v5
+
+            - name: Install dependencies and build
+              if: github.event.action != 'closed'
+              run: |
+                python -m pip install poetry
+                poetry install --no-dev
+                poetry run make html
+
+            - name: Deploy preview
+              uses: rossjrw/pr-preview-action@v1
+              with:
+                source-dir: ./build/html/