fix: upgrade @langchain/community from 0.0.50 to 0.0.51

Snyk has created this PR to upgrade @langchain/community from 0.0.50 to 0.0.51.

See this package in npm:
https://www.npmjs.com/package/@langchain/community

See this project in Snyk:
https://app.snyk.io/org/cnkang/project/6cbefc38-dc75-4bec-9769-882b1183ef43?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

api/package.json

@@ -38,7 +38,7 @@
     "@google/generative-ai": "^0.7.0",
     "@keyv/mongo": "^2.1.8",
     "@keyv/redis": "^2.8.1",
-    "@langchain/community": "^0.0.50",
+    "@langchain/community": "^0.0.51",
     "@langchain/google-genai": "^0.0.11",
     "@langchain/google-vertexai": "^0.0.11",
     "agenda": "^5.0.0",