fix: api/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-EXPREVAL-13833679

Author: snyk-io[bot]

api/package.json

@@ -48,7 +48,7 @@
     "@langchain/google-genai": "^0.2.9",
     "@langchain/google-vertexai": "^0.2.9",
     "@langchain/textsplitters": "^0.1.0",
-    "@librechat/agents": "^2.4.38",
+    "@librechat/agents": "^3.0.2",
     "@librechat/api": "*",
     "@librechat/data-schemas": "*",
     "@node-saml/passport-saml": "^5.0.0",