add deploy:preview script to package.json

Author: tondeee

package.json

@@ -12,6 +12,7 @@
     "prettier": "prettier --write .",
     "preview": "opennextjs-cloudflare build && opennextjs-cloudflare preview",
     "deploy": "opennextjs-cloudflare build && opennextjs-cloudflare deploy",
+    "deploy:preview": "opennextjs-cloudflare build && npx wrangler versions upload --env=preview",
     "cf-typegen": "wrangler types --env-interface CloudflareEnv cloudflare-env.d.ts",
     "prettier:check": "prettier --check .",
     "test": "npm run lint && npm run prettier:check"