fix(deps): update dependency openai to v6

Author: renovate[bot]

package.json

@@ -26,7 +26,7 @@
     "chalk": "5.4.1",
     "https-proxy-agent": "^7.0.6",
     "ollama": "^0.5.14",
-    "openai": "^4.91.1",
+    "openai": "^6.1.0",
     "ora": "^8.2.0",
     "puppeteer": "24.6.0",
     "vitepress": "1.6.3",