Add build step for open-next site in workflow

Signed-off-by: Aviv Keller <me@aviv.sh>

Author: avivkeller

.github/workflows/tmp-cloudflare-open-next-deploy.yml

@@ -54,6 +54,10 @@ jobs:
         working-directory: apps/site
         run: node --run build:blog-data
 
+      - name: Build open-next site
+        working-directory: apps/site
+        run: node --run cloudflare:build:worker
+
       - name: Deploy open-next site
         working-directory: apps/site
         run: node --run cloudflare:deploy