[docs] Generate JSON file with supported boards

.github/workflows/docs.yml

@@ -13,6 +13,17 @@ jobs:
       - name: Checkout main
         uses: actions/checkout@v2
 
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
+      - name: Install ltchiptool
+        run: pip install ltchiptool
+
+      - name: Generate static JSON files
+        run: python docs/build_json.py
+
       - name: Set custom domain
         run: |
           mkdir -p site/